How do I fix this: lmtp appears to be case sensitive

[Patrick Boutilier]

Rob Tanner wrote:
> I just put Cyrus 2.2.3 into production and got an email from a parent saying
> that suddenly mail to their daughter bounces.  The bounce message is (actual
> email account changed to avoid FERPA issues):
> 
> <Xxxx at linfield.edu>: 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
> 
> The bottom line is that mail to xxxx gets delivered and mail to Xxxx gets
> bounced.  The delivery should be case insensitive. The only parameter I see
> in /etc/imapd.conf that has to do with case is username_tolower, but that
> appears to have to do with user login, and in any case, it is set.  Should I
> unset it?  What do I need to do?

Are all your usernames lower case? If so this might help (man imapd.conf)

lmtp_downcase_rcpt: 0

If  enabled, lmtpd will convert the recipient address to lowercase (up 
to a '+' character, if present).


> 
> Thanks.
> 
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