deliver reports (/var/lib/imap/socket/lmtp) failed: Connection refused

[Gyorgy Knyihar]

Hello,

We had a properly working postfix + cyrus-imap system till 23rd of  
July. Then messages like the below one started to appear in the log  
file.

Sep  3 07:45:59 srv1 deliver[20650]:  
connect(/var/lib/imap/socket/lmtp) failed: Connection refused

The postfix log shows:

Sep  3 07:45:59 srv1 postfix/pipe[19972]: B88D01DC8EF8: to=<xxx@
srv1.xxx.xx>, orig_to=<xxx at xxx.xx>, relay=cyrus-deliver, delay=2
49424, status=deferred (temporary failure. Command output: couldn't  
connect to l
mtpd: Connection refused_ 421 4.3.0 deliver: couldn't connect to lmtpd_ )


Do you have any ideas what could happen? It worked fine before.


cyrus.conf contains:

   # at least one LMTP is required for delivery
#  lmtp         cmd="lmtpd" listen="lmtp" prefork=0
   lmtpunix      cmd="lmtpd" listen="/var/lib/imap/socket/lmtp" prefork=5


postfix/master.cf contains:

cyrus-deliver     unix  -       n       n       -       -       pipe
   user=cyrus argv=/usr/lib/cyrus-imapd/deliver -e -r ${sender} -m  
${extension} ${user}


postfix/main.cf contains:

mailbox_transport = cyrus-deliver

Please advise.

Thanks, Gyorgy