Hi,

I am trying out SOGo 4.3 and I have an issue with SMTP. I have an SMTP server on port 587, STARTTLS required, login with email and plain text password.

I have set the following values in sogo.conf:
SOGoMailingMechanism = smtp;
SOGoSMTPServer = "smtp.my.domain:587";
SOGoSMTPAuthenticationType = PLAIN;
SOGoForceExternalLoginWithEmail = YES;

However when trying to send an email in the web interface, it says "cannot send message: (smtp) authentication failure". The logs show the following: C: connect to <0x0x5635537778b0[NGInternetSocketAddress]: host=smtp.my.domain not-filled>
S: <SMTP-Reply: code=220 line='smtp.my.domain'>
C: EHLO sogo-0.my.domain
S: <SMTP-Reply: code=250 line='CHUNKING'>
S: pipelining extension supported.
S: size extension supported.
C: QUIT
S: <SMTP-Reply: code=221 line='2.0.0 Bye'>

Am I missing something in the configuration? I am not sure SOGo actually encrypts the connection with STARTTLS but I can't find an option for that.

IMAP is working perfectly fine.

If I should provide any additional information, please let me know.

Kind regards,
Jeroen

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