SMTP and IMAP (Mail store) config (mail_vars)

These are SMTP and IMAP server configuration variables.
Note: If you have multiple Cyrus Servers, then you should have the same admin username as pass set on them, which should be ok, if your Cyrus server is authentifying via LDAP

Unless you are running another MTA other than Postfix most of the default values are acceptable.
Currently the only supported MTA is Postfix

• Server Maps command (makeMapCommand) - command to build hash tables for Postfix
• IMAP server (imapServerBackend) - courier or cyrus
• Map files directory smtpServerConfDir - configuration directory for Postfix MTA
• SMTP server reload command (smtpServerReloadCommand) - command to force MTA to reload configuration files
• Mailbox Prefix (imapMailboxPrefix) - default prefix for imap mailboxes.
  For Cyrus set this to "user."
  For Courier set this to "Maildir/"