maildrop:_Cannot_determine_my_username./

[Spacedust]

One of my customer is unable to receive e-mails because of such error:

Apr 19 13:51:59 onlinecity send: status: local 3/500 remote 5/200
Apr 19 13:51:59 onlinecity send: delivery 9: deferral: maildrop:_Cannot_determine_my_username./

[MRatWork]

Missing '/home/lxadmin/mail/domains/<domain>/<account>'

[Spacedust]

Missing '/home/lxadmin/mail/domains/<domain>/<account>'

It exists:

ls -l /home/lxadmin/mail/domains/xxx.no/energiekspert/
total 12K
drwxr-xr-x  2     7865   7865 4.0K Oct  9  2013 autorespond
drwx------ 10     7865   7865 4.0K Apr 15 15:10 Maildir
-rw-r--r--  1 vpopmail vchkpw  113 Oct  9  2013 user_prefs

Sending works without any problems. Logging in is also fine.

[MRatWork]

No .qmail and .maildroprc file inside?.

[Spacedust]

No .qmail and .maildroprc file inside?.

It exists in Maildir:

Our customer has been removed due to unpaid invoices.

Then he paid again, we've created blank account but he restored his account from backup.

This caused all mail directories to have old user ID.

The fix was simple just change ID to the old one in /etc/passwd and /etc/group.

Please check if backups are restoring proper user ID's !

[MRatWork]

No. must be exists in /home/lxadmin/mail/domains/xxx.no/energiekspert/ and not in /home/lxadmin/mail/domains/xxx.no/energiekspert/MailDir

[Spacedust]

No. must be exists in /home/lxadmin/mail/domains/xxx.no/energiekspert/ and not in /home/lxadmin/mail/domains/xxx.no/energiekspert/MailDir

Correct - it was there. There reason was only wrong user ID (proper name, but new ID number).