Hi,
I have virtualmin on a Ubuntu 18.04 Server. I installed SSL-Certificates from Let’s Encrypt and copied them to Dovecot and Postfix.
Sadly I get these error-messages:
postfix/smtps/smtpd[15736]: connect from p4FDAEFBE.dip0.t-ipconnect.de[79.218.239.190]
postfix/smtps/smtpd[15736]: warning: p4FDAEFBE.dip0.t-ipconnect.de[79.218.239.190]: SASL NTLM authentication failed: authentication failure
postfix/smtps/smtpd[15736]: warning: SASL authentication failure: unable to canonify user and get auxprops
postfix/smtps/smtpd[15736]: warning: p4FDAEFBE.dip0.t-ipconnect.de[79.218.239.190]: SASL DIGEST-MD5 authentication failed: authentication failure
postfix/smtps/smtpd[15736]: warning: p4FDAEFBE.dip0.t-ipconnect.de[79.218.239.190]: SASL LOGIN authentication failed: authentication failure
postfix/smtps/smtpd[15736]: lost connection after AUTH from p4FDAEFBE.dip0.t-ipconnect.de[79.218.239.190]
postfix/smtps/smtpd[15736]: disconnect from p4FDAEFBE.dip0.t-ipconnect.de[79.218.239.190] ehlo=1 auth=0/3 commands=1/4
When trying to connect via Outlook. I will be asked to verify the SSL-Certificate (which is odd as it should be signed) and I’m asked for the password and username over and over again.
If I check the user it says:
IMAP (fetching email) 06/23/2018 2:50 PM (basically now)
so it seams like I can lock in via IMAP
How can I debug this. Does anybody know this problem?