Failed To Authenticate On Smtp Server With Username

As Dovecot provides mechanisms for user authentication, Postfix will simply ask Dovecot to do the work for it. Resolution. SMTP servers usually support at least one authentication method, but most support several. AUTH=LOGIN. Laravel :Failed to authenticate on SMTP server with username using 2 possible authenticators I've configured to gmail SMTP server to send email. SMTP (Simple Mail Transfer Protocol) is an industry standard way to send emails that use proper authentication method to ensure email deliverability. In order to configure Postfix to make and accept connections over IPv4 only, add the following line to main. Re: 3115cn SMTP 016-503 I experienced a similar issue with the Dell 1355cnw Color MFP. SMTP authentication fails from application server (Page 1) — iRedAdmin-Pro Support — iRedMail — Works on Red Hat Enterprise Linux, CentOS, Debian, Ubuntu, FreeBSD, OpenBSD. Contact your System Administrator. SMTP => Another provider PHP Mail => Your current servers email Second,. When someone on the internet sends an email to john@example. Also Ross's post above is a little outdated. This may reveal the secret if the other side offers a plaintext authentication mechanism. Right-click the SMTP Virtual Server and choose Start. The settings are as follows. SMTP server does not support any authentication mechanisms. SASL LOGIN authentication failed: no mechanism available says that it cannot connect to the SMTP server and fails to send mail out. I've also stored smtp settings in the smtp. ticket,summary,component,version,milestone,type,owner,status,created,_changetime,_description,_reporter 2,Datebox data entry not saving,component1,,,defect (bug. Failed to authenticate SMTP server with "email" using two possible authentications. I'm on Windows 7, using PHPMailer 5. This requires the server retries the connection, between one minute and 12 hours. com email addresses. Click to expand I am using the latest thunderbird, and unchecking the userpass does work for sending and receiving works either way. SMTP authentication fails from application server (Page 1) — iRedAdmin-Pro Support — iRedMail — Works on Red Hat Enterprise Linux, CentOS, Debian, Ubuntu, FreeBSD, OpenBSD. The steps to setup and configure an SMTP Server or mail relay on Windows Server 2012 are very similar to those for Windows Server 2008 except for a few differences. " followed by your domain name (e. 554 Authentication Failed, must login " SMTP -FROM SERVER: is you must authenticate yourself on this server before. It is usually necessary to enter a name and a password to authenticate the POP3 connection. However, depending on your ISP, it is often unnecessary to enter a name and password to authenticate the SMTP server. But in the first little moment of truth trying to send a mail (3:30 mark), I get an authentication error: Swift_TransportException in AuthHandler. com" using 2 possible authenticators. Uncheck 'Use name and password' for that server or contact your service provider. com and my normal Password for BT server. This tutorial will focus on setting up a Postfix SMTP server to use Dovecot SASL for user authentication. If the reply is 503. ticket,summary,component,version,milestone,type,owner,status,created,_changetime,_description,_reporter 2,Datebox data entry not saving,component1,,,defect (bug. Hi, I am trying to authenticate a user over IMAP and I have several issues. Check out Gmail's help section on POP access for Gmail for specific instructions for setting this up with your email program. When mail is sent to the SMTP server, authentication is performed using the SMTP AUTH protocol by prompting the mail originator to enter the user name and password. HELP! :-) Mostly it's working but the crucial piece I'm missing is the ability to send mail to other hosts through my comcast relay from the command line. Normally I would say “Use Outlook”, and in most cases Outlook provides the best experience. The most common reason for email errors is incorrect information entered in Email Setup. Note: If SMTP authentication is turned on, this password is also used for sending email. com, port: 465 / aspmx. On this page ensure the Server name is correct. 71 and Dovecot 1. If you authenticate as the username user, set the From header to any email account that the username user controls. Here Are the Default Gmail SMTP Settings. A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 64. Specify the SMTP host and the port, you can eventually use a Secured Connection (ssl, tsl. HELP! :-) Mostly it's working but the crucial piece I'm missing is the ability to send mail to other hosts through my comcast relay from the command line. Connection to the smtp server is OK, but none of the authentication data goes through to the server, I got the answer, that "Authenticate as user:. If you have an iiNet Group mailbox but your internet connection is with a non-iiNet Group provider, you’ll need to use the iiNet Group mail servers listed above but set your outgoing mail server with port 587 and ensure that outgoing authentication is. Other extensions to the MailEnable product may also use this username/password combination. 9 SASL configuration on Ubuntu Lucid, but needed some features from dovecot2, so I installed. Maybe there was a recent change on their end in regards to policy. Use smtp-mail. Port Number Enter 587. Net allows sending e-mails from your application. The same SMTP configuration is successful on older versions, But the same version is successful with other SMTP server on the virtual machine, Because of other limitations, we succeeded in using other SMTP configurations on another virtual. How to Configure IIS SMTP Server to relay with authentication The following KB article describes how to use Microsoft's SMTP engine in IIS. server HID Global and Botosoft Launch Mobile Student ID System in West Africa to Authenticate Over 2 Million. org, then account@domain. Outgoing email (without authentication) John is on the internet somewhere and wants to send an email to lisa@example. If you choose to authenticate you will also need to provide your username and password. Remove these address from your list - it is likely a fake, or it was mistyped. In your app/config/config. 0 Temporary authentication failure Event ID: 1035 is logged when some e-mail messages are stuck in a remote delivery queue in a Microsoft Exchange Server 2007 environment or in a Microsoft Exchange. There was stale data in there somewhere. Gmail users: try to switch from oAuth authentication to Username & Password and enable less secure apps. SMTP Authentication, often abbreviated SMTP AUTH, is an extension of the Simple Mail Transfer Protocol (SMTP) whereby a client may log in using any authentication mechanism supported by the server. This is caused by a security setting on the Exchange server that doesn't allow plain authentication. For those who used python-ntlm in 7. It still failed to authenticate. Make sure the Use secure connection (SSL) checkbox is checked, then tap Next. Authentication failed - email settings. 7 and that the printer may (arbitrarily) work and it may not. Note: on my S7, there were two places my email showed under "accounts. :( I have tried starting and stopping the YF instance to see if that made any difference but the problem persists. SMTP Settings for Veeam Agent for Windows Post by tomsmi » Fri Feb 10, 2017 11:43 am this post Hi, if my smtp server requires authentication but presents itself with self signed one, how can i import this certificate to be trusetd by Veeam Agent for Windows?. So I setup a full email server using postfix. If you choose to authenticate you will also need to provide your username and password. WP Mail SMTP plugin offers a native integration with MailGun. com but you should leave “@aol. web2_username. I created a gmail account specifically for the purpose. ashkev, Feb 2, If you don't, and your server uses SMTP-AUTH, you can send only to domains that are on. I have reconfigured it many times, reentered password many times, checked password via http browser, reconfigured gmail account (pop/imap) few times. But when I set up True Image 2015 backup to use the Exchange server, encryption "None" and valid network username and password credentials I get "Authentication failed" and an event code that takes me to an Acronis support page that says username and password are wrong. (Error: Failed to authenticate on SMTP server with username “bob@gmail. net, security: SSL, port 587. Also, make sure that for the username, Office365 requires the username in your SMTP configuration to be your full email address, which includes the domain. Failed to authenticate on SMTP server with username using 2 possible authenticators #827 danielloader opened this issue Apr 26, 2016 · 2 comments Comments. Failed to send e-mail message to qv@michors. Failed to authenticate on SMTP server with username “XYZ” using 2 possible authenticators If you know the login credentials are fine but you still get this error, then you should: 1) go into Backend -> Miscellaneus -> PHP Info and search for “Registered Stream Socket Transports” and make sure it contains at least “tls, tlsv1. With SMTP access at your disposal, you can simply change a configuration setting in your application and instantly switch delivery to Postmark. Problem with Intrusion Prevention and username format fail to authenticate at User=username@domain. How does it work? Just as the REST API uses a server's API token to authenticate the client, SMTP access is also configured per server. Ok, apparently the server distinguishes by the incoming IP address whether or not authentication is needed. I set up a new gmail account just for this, and then it worked fine. com' could not be found. // STREAM_CRYPTO_METHOD_TLS_CLIENT only allow tls1. It is intended to lay out guidelines for how to send email off your existing externally hosted email server. Please be patient, the system will try to login to mail server to validate the entered login info. 0 protocol to authorize access to the Gmail API - which means a more secure login system and users won't have to enter any username or password. Below are instructions on how to test SMTP AUTH against a mail server using Telnet and entering the commands by hand. The Gmail SMTP server requires authentication (use the same settings as for the incoming mail server) The Google Gmail SMTP Server requires an encrypted connection (SSL) on port 465. POP Authentication: If is set, the authentication protocol (including APOP) is used for authentication to the POP3 server. This API makes a call to the server. Route for incoming emails. Security Type Choose TLS. This may reveal the secret if the other side offers a plaintext authentication mechanism. If you receive the 220 response you can reach the SMTP server and there is no connectivity problem but if the connection to the server failed see what's wrong in your network. First of all, ensure that the email settings are configured correctly. Hi I've tried varous combinations of parameters but keep getting the following message Invalid address: SMTP -> ERROR: Password not accepted from server: 501 Authentication failed - bad user or password. After hours of being on the phone & chat lines with Dell Support, I was told that Dell drivers do not work with Mac 10. I was working on MVC (C#) application sending email through Gmail Server, meanwhile popped up me issue the server response was 5. This can happen even if it is able to receive mail successfully. I think when I first set this up I had to authenticate the e-mail address and then everything works, but you say you are familar with "authentication. (Error: Failed to authenticate on SMTP server with username “bob@gmail. SASL authentication failed; cannot authenticate to server. So, I was playing around and going crazy with this issue. If the mail server being used requires SMTP authentication, the scan to e-mail process will fail. 71 and Dovecot 1. Fix: On the Advanced tab of your POP email client program, enable This server requires an encrypted connection (SSL) for the SMTP server. 168]: no > mechanism available) Please pay attention to that last line. The value for the credential hash that the server was sending not calculated using the same nonce used during enrollment, due to which the initial authentication failed and the client requested the server to authenticate itself again. SMTP Password: The password to connect to your SMTP server. Connection securityis SSL/TLS. Please verify that you have entered the server name correctly. ticket,summary,component,version,milestone,type,owner,status,created,_changetime,_description,_reporter 2,Datebox data entry not saving,component1,,,defect (bug. Select User name and password. dejanovic@yaho , January 29, 2017 in General topics Recommended Posts. If you're using Outlook. Sending emails with postfix and gmail - SASL authentication failed Trying to send emails with sendmail on Centos6 using gmail as a relay, however, SASL authentication fails. With OAuth2 you do not need to "Allow less secure apps to access mail. Then, click on the "Delivery Options" tab and check the "Requires Authentication" box under your SMTP server address. web2_username. Environment: Exchange 2010 SP3: 2 mailbox server in DAG, 2 CAS/HT with windows NLB. Please verify that you have entered the server name correctly. If you are having problems sending email through the Amazon SES Simple Mail Transfer Protocol (SMTP) interface, review the possible causes and solutions below. This is the email server used to send emails. As username, enter your yourname@hotmail. That document explains how OAuth 2. pass settings are not in the conf file more than once, and if they are, to comment them all out?. What can I do to solve this? I must say the first time I installed SuiteCRM in my hosting, the test mail worked. A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 64. Most SMTP and mail sending problems come from the fact that either the username and password log-in combination is incorrect, the mail server doesn't support StartTLS, or the authentication mechanism used is wrong. The outbound server settings page allows you to enable or. If you're using Outlook. Sorry to hear you’re facing problems. net account, then from the Outgoing Mail Server (SMTP) drop- down list, select Edit SMTP Server List. Why & when do I need these settings?. com) that you determined if the first section. To use the Google Gmail SMTP server, use the following information: Google Gmail Outgoing Mail Server (SMTP): smtp. Usually, the SMTP Auth user name is provided by the MUA to the SMTP server without the domain suffix. Can someone tell me what's amiss, and while you're at it, tell me where in a just and well-ordered universe a service provider changes server settings without notifying. Amazon SES SMTP Issues. ) I've configured the dovecot installation and am getting the proper response on port 143 already. I am using Gmail. net into the Outgoing mail server (SMTP): field. Failed SMTP Authentication from Huge Botnet for various reasons. It appears that Connect does not allow some characters in the SMTP user password. I had working Exim 4. As Dovecot provides mechanisms for user authentication, Postfix will simply ask Dovecot to do the work for it. dejanovic@yaho , January 29, 2017 in General topics Recommended Posts. The settings are as follows. com email addresses. iCloud does not support POP. So, I was playing around and going crazy with this issue. Riskier though since messages from untrusted servers usually end up in the Spam folder. The Firewall Security Requirements Guide (SRG) is published as a tool to improve the security of Department of Defense (DoD) information systems. ) which tells me a lot of malarkey about server settings. xml setup properly and I do see in the logs Hyperic attempt to make the SMTP Auth connection. It just seems that it doesn't pass the Hashed username/password. To use the Google Gmail SMTP server, use the following information: Google Gmail Outgoing Mail Server (SMTP): smtp. You're using the wrong SMTP Port. Failed to authenticate on SMTP server with username " info@yazdimail. Try unchecking the "Use name and password" option in the settings for the Outgoing (SMTP) server. I ensure the port for pop. "Failed to authenticate on SMTP server with username "helpdesk@domain. Gmail users: try to switch from oAuth authentication to Username & Password and enable less secure apps. Do not use external SMTP servers as most of these have security that prevents programs like RDPWin and the IRM from sending e-mail. Customer Firewall has necessary Configuration to allow SMTP connections. com using 2 possible authenticators on shared host 0 google app smtp Failed to authenticate laravel 5. Also Ross's post above is a little outdated. org some other mail server will deliver the email using SMTP to your mail server. Laravel :Failed to authenticate on SMTP server with username using 2 possible authenticators I've configured to gmail SMTP server to send email. Try unchecking the "Use name and password" option in the settings for the Outgoing (SMTP) server. Problem: With correct login and password, and correct SMTP settings for Gmail SMTP, owncloud “Test email settings” button fails with: A problem occurred while sending the email. And this for smtp: Login to server smtp. Enter your password into the Password: field. 71 and Dovecot 1. We are trying to find out if they changed their servers to the Yahoo scheme they merged with. com where we can ensure your business keeps running smoothly. I forgot my username. * Enter your username and password. I think when I first set this up I had to authenticate the e-mail address and then everything works, but you say you are familar with "authentication. When Postfix receives an email and needs to forward it to another server this is called relaying. How to troubleshoot? Unable to send emails using Plesk local mail server: Connection timed out or connection refused; Plesk Migration fails: Failed to select folder the only emailserver not working seems to be office 365, but as a standalone client using smtp (not native exchange protocol) I guess the issue is not at the Microsoft offering. com", I get the error: Mailbox unavailable. How to troubleshoot? Emails sent from a Plesk server to mail services like Gmail, Outlook or Yahoo! Mail appear in spam. How to configure PHP mail()/SMTP authentication for different CMS. If you’re running a business, paid support can be accessed via portal. Libraries and Samples. Here is the problem, everything is connecting now and I can see its connected properly, however it times out while sending the message. Now we think ATT was giving us alot of BS. IP Access Management has locked me out. Configuring email on the collector should have worked without any issues. All basic SMTP commands that are specified by the SMTP protocol are described below. In code, when I authenticate through SMTP (user/pass) and tries to send an email from "user@mydomain. com) is not processed by the Simple Mail Transfer Protocol (SMTP) or outgoing server that the sender is requesting to deliver the message. Usually you define your own local network here. up Trying to log in to this account failed. If you’re running a business, paid support can be accessed via portal. SMTP or Simple Mail Transfer Protocol allows you to send emails from an email application through a specific server. com where we can ensure your business keeps running smoothly. Non Gmail users: make sure that 2 steps authentication is turned off, or if it's on, generate an app specific password. They allow you to send your first 10,000 emails for free every month. I cannot get this to work. If you set up an account using iCloud System Preferences or macOS Mail in 10. This is the simplest authentication method where the username and password are sent to the SMTP server in clear text (that is, unencrypted) although the values are Base64-encoded. Finally, choose if you want to authenticate your mailing or not (and in case fill the “User name” and “Password” field). We will try to let you know before 8th July 2019 of our decision. OK - just got it to work with Gmail as the SMTP server. Enter your password into the Password: field. If you are using a different provider for incoming as they are for outgoing mail then you will need to select "User Name and Password" next to Authentication and enter your username and password for the outgoing mail server. How to Configure IIS SMTP Server to relay with authentication The following KB article describes how to use Microsoft's SMTP engine in IIS. How to Configure SMTP on Avaya IP Office If you want to use email on your Avaya IP Office phone system you will need to configure the SMTP settings. By default, the mail server does not allow relaying of mail from unauthenticated clients to external mail servers. Titan Classifieds Site - Swift_TransportException Failed to authenticate on SMTP server Discussion in ' Site & Server Administration ' started by Prince Gift , Jun 29, 2013. Most E-mail clients support "SMTP AUTH" - the standard SMTP Authentication method that allows a mailer to authenticate the user (the sender). I configured an IMAP & SMTP Client with Thunderbird, working perfectly. Has nothing to do with remote SMTP users. php is located in /usr/share/pear/ directory. How does it work? Just as the REST API uses a server's API token to authenticate the client, SMTP access is also configured per server. SMTP (Simple Mail Transfer Protocol) is an industry standard way to send emails that use proper authentication method to ensure email deliverability. Gmail users: try to switch from oAuth authentication to Username & Password and enable less secure apps. Enable SSL. com" using 1 possible authenticators”. iCloud Mail uses the IMAP and SMTP standards supported by most modern email apps. Sometimes it will get blocked when your website reaches the daily limit of outgoing email. This tutorial will focus on setting up a Postfix SMTP server to use Dovecot SASL for user authentication. I cannot get this to work. I have a small problem which I cannot figure out, but taking my chances with you here. (May not be. iCloud does not support POP. com, port: 25 ) all time show "Job failed. com email addresses. 8 Error: authentication failed: postfix email-server mandrill share | improve this question. Maybe the server need to authenticate the user, please check it and try again interestingly, this is a different message than is returned when i try other services ("The server does not support the authentication mode used by the device"). Configure SMTP authentication on your mail servers using the SMTP-AUTH login command by following these step-by-step instructions and examples. In order to configure Postfix to make and accept connections over IPv4 only, add the following line to main. My log is filled with: Email Sending Failed - SMTP Error: Could not authenticate. 551 `User does not exist. dejanovic@yaho , January 29, 2017 in General topics Recommended Posts. For example, you can add rules to send an email whenever a step fails, or when a deployment has completed successfully. Connection Failure: <530> Enable SSL/TLS is turned Off when it's actually required. Others expect just the portion to the left of the '@' in the email address. Change Authentication to applicable Plain/Login or None. The value for the credential hash that the server was sending not calculated using the same nonce used during enrollment, due to which the initial authentication failed and the client requested the server to authenticate itself again. I get a message that says “Authentication failed” service is not allowing you to connect because it does not recognize your username or password for some. 9/20/2017; 13 minutes to read; In this article. I do not want to stuff features away in another folder so it all works. (In reply to comment #12) > When Off-campus I am using an ADSL modem and connecting to the schools smtp > server on port 465 (same port as on campus). i can use the web access and login using that email id and password and send / receive emails I am sorry i did not understand what do i need to try with base64. I have tried the following to fix this problem: I have checked all of the mail settings and they are all correct. Office 365 SMTP Relay User Case: Customer has several SMTP clients in the LAN (P rinter, Health monitor Application) that needs to relay Email through O365. The user's mailbox was unavailable. Package cyrus-sasl-plain-2. 2/14/2019; 2 minutes to read; In this article. Examples of webmail providers that use STARTTLS included Gmail, Yahoo, and AOL. ir" using 2 possible authenticators what is my problem how i can resolve it i n the meantime I have access to the server (ssh,directadmin). What is Exchange Server Protocol Logging? Protocol logs capture the SMTP communications that occur between servers. Additional extensions may be handled by clients. The message is processed when the Mimecast server is less busy. PHP send email using PHP SMTP mail Pear functions – Sample source code. Sorry to hear you’re facing problems. If you choose to authenticate you will also need to provide your username and password. POP Authentication: If is set, the authentication protocol (including APOP) is used for authentication to the POP3 server. As Dovecot provides mechanisms for user authentication, Postfix will simply ask Dovecot to do the work for it. Navigate to the Settings area of WP Mail SMTP in the WordPress admin. Xerox WorkCentres have a feature called ‘Scan to E-mail’ which can be used to send emails. Finally, choose if you want to authenticate your mailing or not (and in case fill the “User name” and “Password” field). query (socket, cmd, data, lines). Our server is Windows 2008r2. GW MFPs have their own SMTP account settings. If you run Microsoft Exchange Server to process incoming Internet email, spammers might be using your mail server as a relay even though your server isn't an open relay. If you can’t find your outgoing email SMTP server in the list above, please comment below and we’ll find it for you, and update our list so others will benefit from your help. It just seems that it doesn't pass the Hashed username/password. Sends the HELP command to the SMTP server. Usually this is the same as your email address, however some SMTP servers require a different set of credentials that are separate from those used to receive email. If you are refering to setting Basic Auth, I just did that, ran the POP3 task again, and now I get "Failed to authenticate on SMTP server with username "helpdesk@arcusnetworks. Testing SMTP AUTH connections. The purpose of SMTP sender authentication is to authenticate the connection between a Domino router and an SMTP server. To add or modify the SMTP User Authentication in GroupMail, click on Tools/Account Manager (or Manage Accounts) and click “Modify” for the sender identity you wish to change. Also, make sure that for the username, Office365 requires the username in your SMTP configuration to be your full email address, which includes the domain. Sometimes it will get blocked when your website reaches the daily limit of outgoing email. To add or modify the SMTP User Authentication in GroupMail, click on Tools/Account Manager (or Manage Accounts) and click "Modify" for the sender identity you wish to change. Select Use secure authentication. OK - just got it to work with Gmail as the SMTP server. Failed to authenticate on SMTP server with username "REDACTED" using 1 possible authenticators I can connect to the SMTP server through Outlook with the exact same settings (TLS, Port 587 etc) Thanks. Failed to send e-mail message to qv@michors. Note : Please make sure the full email address is entered in "Email address" and "Username" field. How to find the correct SMTP server settings so that you can Send Mail As from Office365 in Gmail One of Gmail's (many) cool features is that it lets you check mail from other non-Gmail addresses and send mail from other addresses that you own. I have followed instruction and setup a "send as account" on gmail using an external email address. If I send it from the desktop, I get a SMTP Error: Could not authenticate notification. 1 Lee Forst Mar 31, 2017 8:37 AM ( in response to Tharashasank Davuluru ) Yes, in Server configuration on the SMTP Setup tab. == This happened == Every time Firefox opened == I upgraded to new version. This made me nuts and may make you or any one this forum as well. If that is the case, type in the name of your ISPs outgoing e-mail server (ex. Port: Change to port 587. 3 with Outlook 2016 (Microsoft Office Home and Business 2016). I have a small problem which I cannot figure out, but taking my chances with you here. User Name: Enter the user name for. In most cases, enter the SMTP settings in the Settings section of the client interface when you add the Yahoo account to it. For example, you can add rules to send an email whenever a step fails, or when a deployment has completed successfully. Secure SMTP server - secure, reliable SMTP mail relay server for your outgoing mail. Failed to authenticate on SMTP server with username "17184036796@163. sendusername: User name; sendpassword: Password Example The following example shows how to send an e-mail through an SMTP server that requires authentication server over the network by providing credentials in clear-text. This is not something that is enabled in Apple mail products by default! it should look like username@example. I am trying to connect to connect to an SMTP/POP server via telnet (port 25 and 110). Open Options from Tools menu in Automation Workshop manager and go to the Email Server tab. The server cannot verify the user, but it will try to deliver the message anyway. This is how to fix "email cannot be sent" when you're using gmail SMTP setup on your contact form. Use this feature with SMTP servers that do not allow Anonymous connections, or with SMTP servers that allow both authenticated and non-authenticated connections. I get a message that says “Authentication failed” service is not allowing you to connect because it does not recognize your username or password for some. Using Google’s SMTP service to relay your outbound mail is a handy way to be able to send mail from Amazon EC2 instances, or other machines running IP addresses considered to be of dubious quality in the spam fighting world. Either the remote SMTP server announces no SASL authentication mechanisms, or your SMTP client has no SASL mechanisms in common with the server. Send mails on Ubuntu 16. It is intended to lay out guidelines for how to send email off your existing externally hosted email server. Check out CamelPhat on Beatport. In this post, we’ll be using the free WP Mail SMTP plugin to send form notifications using a simple setup with any email account. 8 and need the library in python 3 for 7. Please revise your settings. Failed to authenticate on SMTP server with username using 2 possible authenticators #827 danielloader opened this issue Apr 26, 2016 · 2 comments Comments. It uses the OAuth 2. In the User name and Password fields, type your user name and password. Congratulations, your Joomla 2. I wonder if "Failed SMTP Authentication" equates to Unable to connect to server (perhaps, the software doesn't distinguish between the two issues). You need to talk to your mail server administrator to find out why you're not allowed to login to that server. The SMTP server must be the IP address of the Windows Server 2003 or 2008, XP, Vista, or Windows 7 computer where the SMTP server is installed. Made sure that email routing on the server is set to Remote Mail Exhange. I have followed instruction and setup a "send as account" on gmail using an external email address. net account, then from the Outgoing Mail Server (SMTP) drop- down list, select Edit SMTP Server List. nachname und primary-mailaddress anmelden, sowohl bei postfix als auch bei dovecot. About this Guide; 2. Your desktop may have access to the mail server, but the Unix machine your Moodle server is on may not. Configure SMTP authentication on your mail servers using the SMTP-AUTH login command by following these step-by-step instructions and examples. If you are connecting via IMAP, set the following JVM System property:.