Am 01.01.2013 um 15:44 schrieb "Torpey List" list@torpey.org:
==> /var/log/maillog <== Jan 1 08:24:02 nala sendmail[20154]: r01EO2qc020154: from=user@yahoo.com, size=5723, class=0, nrcpts=1, msgid=1357050226.83142.YahooMailNeo@web120205.mail.ne1.yahoo.com, proto=ESMTP, daemon=MTA, relay=mail.example.com [192.168.1.152] Jan 01 08:24:02 lda: Error: userdb lookup: connect(/var/run/dovecot/auth-userdb) failed: Permission denied (euid=0(root) egid=0(root) missing +r perm: /var/run/dovecot/auth-userdb, euid is dir owner) Jan 01 08:24:02 lda: Fatal: Internal error occurred. Refer to server log for more information.
I don't use Sendmail myself so I can't really comment on its configuration. However the issue looks like a typical mismatch of UIDs on the socket:
http://wiki2.dovecot.org/LDA/Sendmail
As per the link above you could try running 'chown mail' on the LDA. This will match the ID to the 'userdb' socket unix_listener (user = mail):
-rwxr-xr-x. 1 root secmail 26512 Aug 18 2011 /usr/libexec/dovecot/dovecot-lda srw-------. 1 mail root 0 Jan 1 08:39 /var/run/dovecot/auth-userdb
Good Luck Thomas