I ported a mail server from RHEL4 to RHEL6 (Red Hat Enterprise Linux Server release 6.3). It has a cyrusd running and email via IMAP works in principle fine.
My problem is with a Squirrelmail webmail interface on another RHEL6 server. It connects fine to the mailserver and can send and receive emails. The problem is with the avelsieve plugin. As soon as I enable it the interface reports to any logged in user:
"Could not log on to timsieved daemon on your IMAP server imap.my.domain.top:2000.
Please contact your administrator."
The plugin worked with the old server and the new one has - to the best of my knowledge - the same IP, hostname and firewall settings (port 2000/tcp is open).
Currently I am trying to get version 1.9.9 (alpha) running where as far as I remember 1.9.8 (alpha) was the version that worked before on the old server (but not on the new one either).
I can ping the server and the telnet connection looks fine:
# telnet imap.my.domain.top 2000
Connected to imap.my.domain.top.
Escape character is '^]'.
"IMPLEMENTATION" "Cyrus timsieved v2.3.16-Fedora-RPM-2.3.16-6.el6_2.5"
"SASL" "DIGEST-MD5 CRAM-MD5 GSSAPI"
"SIEVE" "comparator-i;ascii-numeric fileinto reject vacation imapflags notify envelope relational regex subaddress copy"
The settings in /etc/imapd.conf are:
Where these are the permissions for the sieve directory:
# getfacl /var/lib/imap/sieve
getfacl: Removing leading '/' from absolute path names
# file: var/lib/imap/sieve
# owner: cyrus
# group: mail
The user running the imap daemon is indeed cyrus:
# ps aux | grep imap
cyrus 461 0.0 0.1 119000 3460 ? S Jan07 0:10 imapd -s
My settings in /etc/cyrus.conf are:
# add or remove based on preferences
sieve cmd="timsieved" listen="sieve-filter" prefork=0
I tried also "sieve" and "188.8.131.52:sieve" instead of "sieve-filter".
I disabled TLS in my /usr/share/squirrelmail/plugins/avelsieve/config/config.php
$sieveport = 2000;
$avelsieve_disabletls = true;
I even disabled the firewall completely but this did not help. Do you have any ideas which settings I could try or how to debug the problem? It is urging me quite a lot (although you need not to be urged of course) because lots of users need to disable their vacation responders after the holidays.