I have a problem with postfix that I can´t send by outlook 365, I can download the emails by pop/imap but not send.
All the other tools I tested worked, google smtp, thunderbird, applemail … But not outlook, this is taking my sleep.
Does anyone know a solution?
These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.
×Thanks! It is working!
This issue occur me a headache a long time ago...........
The biggest question: if we are talking about SMTP (postfix), why Dovecot bring the solution?
Dovecot is responsible for managing the mailboxes on the server, while Postfix sends the emails through the SMTP protocol.
I think if Dovecot does not allow login postfix will not send the emails. But I’m not sure.
Hello,
As described in this answer here I would recommend checking your logs for more information.
Run this command:
Question
tail -f /var/log/mail.err /var/log/mail.log /var/log/dovecot.log /var/log/spamassassin/spamd.log
And then try to authenticate via Outlook and try to send an email. This should populate the logs and the information would give you a good starting point for further troubleshooting.
Let me know how it goes!
Regards,
Bobby
These commands do not work on my system. But I have the postfix logs.
Error message:
https://pastebin.com/UZr5QnXN
Message successfully:
https://pastebin.com/4kavaAZ0
I changed the email names and ips for privacy.
The ports are open:
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
master 11356 root 18u IPv4 11361836 0t0 TCP *:submission (LISTEN)
master 11356 root 19u IPv6 11361837 0t0 TCP *:submission (LISTEN)
smtpd 15250 postfix 6u IPv4 11361836 0t0 TCP *:submission (LISTEN)
smtpd 15250 postfix 7u IPv6 11361837 0t0 TCP *:submission (LISTEN)
I also found out that it is a mac/os outlook specific issue, unfortunately microsoft didn’t want to support me.
Hello,
This indeed sounds like a Mac Outlook specific problem as I’m unable to find anything specific in the logs that could be pointing to a configuration problem.
Have you tried using the Mac Mail instead to see if that works?
Regards,
Bobby
Yes, all other email programs work. Apple mail, thunderbird, google smtp … until outlook on iphone.
I solved adding auth_mechanisms to /etc/dovecot/dovecot.conf and restart dovecot.
I solved it! If anyone else has this problem just need to add auth_mechanisms to /etc/dovecot/dovecot.conf and restart dovecot.
That way he will be able to log in smtp to outlook on mac.