Quoting Morten lists@kikobu.com:
My /etc/imapd.conf has:
sasl_pwcheck_method: saslauthd
So I guess the question is, how to make SASL authenticate OS users. Any tips?
Check if saslauthd is running. If not, "/etc/init.d/saslauthd start" (don't forget to enable it to start during boot, "chkconfig saslauthd on"). You'll find saslauthd logs in /var/log/messages. My guess is that most likely you haven't started saslauthd service.
The config file for saslauthd is /etc/sysconfig/saslauthd. To be more precise, it is config file for the startup script. Check the MECH line. If your system accounts are all in local files (/etc/passwd, /etc/shadow), the default MECH=shadow is fine. If they are on NIS or something similar, you might consider changing MECH line to MECH=pam. See manual page for saslauthd for more info.
There's also testsaslauthd program that you can use to test if saslauthd itself works correctly. However, you must give it password on command line, so change it to something dummy before using this program.
If saslauthd is running, and it runs correctly (test with testsaslauthd), user's INBOX folder probably doesn't exist. It can be created automatically when user logins for the first time, or you can create it manually.
To have it automatically created, add this option to imapd.conf:
autocreatequota: -1
You can also use autocreateinboxfolders and autosubscribeinboxfolders options to automatically create some subfolders for user (such as Drafts or Sent Items for example) when INBOX folder is automatically created. See imapd.conf manual page for more details.
If you prefer to create mailboxes manually, you can use cyradm command for that:
cyradm --user cyrus localhost
Make sure you set password for cyrus account first.
Than, in cyradm, you would use "cm" (create mailbox) command to create the mailbox under the user tree (yes, you must type "user." part, otherwise you would be creating shared folder):
cm user.username
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