Probably a namespace issue. The imap daemon is telling you there's not new mail. So wherever it's looking it sees no mail. So either it's looking in the wrong place, and the configuration isn't correct. Error logs will inform you about the latter, 'dovecot -n' about the former. Show dovecot client connection and error logging, and dovecot -n.
Hi Stan,
Unfortunatley not.
As demonstrated in my initial post, I can do :
#cat /srv/mail/ops.example.com/test/new/1375430267.M868397P2192.ukc-vm02-mx01\,S\=477\,W\=486
And the debug shows the MUA looking in the same place (forgot to include the Dovecot MUA debug earlier) :
Aug 2 09:01:09 ukc-vm02-mx01 postfix/anvil[2642]: statistics: max connection rate 1/60s for (smtp:192.168.198.199) at Aug 2 08:57:17 Aug 2 09:01:09 ukc-vm02-mx01 postfix/anvil[2642]: statistics: max connection count 1 for (smtp:192.168.198.199) at Aug 2 08:57:17 Aug 2 09:01:09 ukc-vm02-mx01 postfix/anvil[2642]: statistics: max cache size 1 at Aug 2 08:57:17 Aug 2 09:03:38 ukc-vm02-mx01 dovecot: imap-login: Login: user=<test@ops.example.com>, method=PLAIN, rip=192.168.198.199, lip=79.170.177.71, mpid=2667, TLS Aug 2 09:03:38 ukc-vm02-mx01 dovecot: imap(test@ops.example.com): Debug: Effective uid=1001, gid=1001, home=/ Aug 2 09:03:38 ukc-vm02-mx01 dovecot: imap(test@ops.example.com): Debug: maildir++: root=/srv/mail/ops.example.com/test, index=, control=, inbox=/srv/mail/ops.example.com/test, alt= Aug 2 09:03:51 ukc-vm02-mx01 dovecot: imap(test@ops.example.com): Disconnected: Logged out bytes=26/599