I cannot get my mail working with virtualmin, dovecot and postfix
I have tried every setting. If I try to authenticate via my mailclient, I get an error instantly
If I try webmail (roundcube) I get: ‘SMTP authentication failed’.
I already checked: - If dovecot was running under port 143 - if the mailserver I use (mail.mydomain.com) points to the correct IP - if the user is listed in virtualmin under my domain - I did re-check configurattion and everything is OK - Sending mail from usermin is also not working, gives 'Failed to send mail : SMTP command . failed : 451 4.3.0 Error: queue file write error ' - Sending mail to the mailadres is not working too (no error in mailclient, just not sent or received) - I have set-up this DNS records: mail.mydomain.com. , pointing to MY vps-s IP (A record) and an Mx record vor mail.mydomain.com. - In webmin I checked if both dovecot and postfix are up&running - I tried numerous other settings but nothing seems to work
What now? Where do I start debugging?
PS: I don`t now if this matters, but the VPS mainserver (the domain I talk about here is a subserver), the mainserver is a subdomain like: srv5.myserversdomain.com. This hostname (srv5) points to the VPS. On the VPS I run virtualmin and withing virtualmin I have srv5.myserverdomain.com as mainserver and mydomain.com as subserver. The website is working fine for mydomain.com, just the mail not.
PS, I tailed the log too this gives 2 errors all the time: > queue file write error > hash: /etc/postfix/bcc is unavailable. open database /etc/postfix/bcc.db: no such file or dir > sender_bcc_maps_lookup porblem
Thanks a lot!