Cyrus IMAP hates me

Kevin O'Connor kevin at
Fri Oct 22 15:46:42 BST 2004

You could try going with the 0 and 1 format for true and false. The Caldera
version of imapd.conf uses this format and it seems to work fine.

>-----Original Message-----
>From: freebsd-users-admin at [mailto:freebsd-users-
>admin at] On Behalf Of Sam
>Sent: 22 October 2004 12:07
>To: freebsd-users at
>Subject: Cyrus IMAP hates me
>Dear Clever People
>I realise this may be the wrong list for this question, but I also
>suspect that somebody reading this probably knows the answer...
>We're having a bit of trouble with our mail setup: we have postfix
>(2.0.10) handing mail on to Cyrus imapd (2.1.13) via lmtp, and most of
>the time it Just Works. The problem is that mails with uppercase
>characters in the name (i.e. before the '@') get bounced thus:
>        Oct 22 11:51:13 foo postfix/lmtp[98236]: 5C805E391C:
>        to=<SAM at>,
>        relay=/var/imap/socket/lmtp[/var/imap/socket/lmtp], delay=0,
>        status=bounced (host
>        /var/imap/socket/lmtp[/var/imap/socket/lmtp] said: 550-Mailbox
>        unknown.  Either there is no mailbox associated with this
>        550-name or you do not have authorization to see it. 550 5.1.1
>        User unknown (in reply to RCPT TO command))
>Which is true (there is no mailbox called 'Sam', it's 'sam') but not
>very helpful. We Googled a bit and found a few people who recommended
>        'lmtp_downcase_rcpt: yes'
>in imapd.conf, so we did this, restarted imapd, and... nothing happened.
>Anybody else run up against this apparently braindead behaviour? Or have
>we missed something?
>Sending this message was important to us. We considered ourselves to be
>a powerful culture.
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