When the Sieve plugin tries to send a vacation message or redirect a message to another address it fails.
dovecot: lmtp(6412, u...@example.com): Error: lmtp client: DNS lookup of orange.example.com failed: connect(dns-client) failed: No such file or directory dovecot: lmtp(6412, u...@example.com): Error: dAIOClYSJE8MGQAAhQ0vrQ: sieve: msgid=<4f241255.2060...@example.com>: failed to redirect message to <admin+u...@example.com> (refer to server log for more information) But the dns-client sockets are created when Dovecot starts up: # find /usr/local/var/run/dovecot -name dns-client -exec ls -l {} + srw-rw-rw- 1 root staff 0 Jan 28 16:15 /usr/local/var/run/dovecot/dns-client srw-rw-rw- 1 root root 0 Jan 28 16:15 /usr/local/var/run/dovecot/login/dns-client Hum, is it Dovecot or Pigeonhole (dovecot-2.1-pigeonhole 1600:b2a456e15ed5)? Regards, Pascal -- The trapper recommends today: c01dcofe.1202...@localdomain.org