From LQWiki

Cyrus is an program that offers a mail service. It is an implementation as well of the imap as of the pop protocol.

Contents 1 Web Site 2 How to ... 2.1 Create a mailbox 3 TroubleShooting 3.1 Invalid login 3.2 Permission denied for postfix 4 See also

Web Site

http://cyrusimap.web.cmu.edu/

How to ...

Create a mailbox

cyradm --user youruser --auth plain localhost
cm youruser

TroubleShooting

Invalid login

• Symptome: You get the message "Invalid login". If you retrieve mail manually using telnet, you see the error message

-ERR [AUTH] Invalid login

• Solution: Add your user to cyrus' authentication file:

saslpasswd2 -c myuser

And make sure the sasl authentication daemon is started:

/etc/init.d/saslauthd start

Permission denied for postfix

• Symptome: You are using postfix as MTA. You send a mail using sendmail. Afterwards, mailq delivers a permission denied error:

mailq
-Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
2547D8346E5      282 Sat Jan  5 11:32:18  root@kolossus.site
       (connect to kolossus.site[/var/lib/imap/socket/lmtp]: Permission denied)
                                          whoever@localhost.site
-- 0 Kbytes in 1 Request.

postfix is configured to run as user postfix:

ll /var/spool/postfix/deferred/
total 16
drwx------ 2 postfix postfix 4096 Jan  5 12:43 2
[...]

the user postfix cannot write-access /var/lib/imap/socket/:

sudo -u postfix touch /var/lib/imap/socket/postfix-tmp
touch: cannot touch `/var/lib/imap/socket/postfix-tmp': Permission denied

• Reason: Your postfix is not allowed to write to cyrus' lmtp socket /var/lib/imap/socket/lmtp
• Solution: Set the permissions that postfix can access your cyrus socket, e.g.:

chmod 777 /var/lib/imap /var/lib/imap/socket

flush your mail queue using postqueue -f

See also

• http://cyrusimap.web.cmu.edu/
• http://nakedape.cc/info/Cyrus-IMAP-HOWTO/
• http://docs.kde.org/development/en/kdebase/userguide/kontact-imap-cyrus.html