Mixed case incoming e-mail addresses being bounced.

[Edward Rudd]

I have my mail server setup using postfix 2.0.16 and cyrus imapd 2.2.3
using the virtdomains: userid in cyrus and the virtual_transport in
postfix using virtual_mailbox_maps and virtual_mailbox_domains for
allowed mail account lookups. One of the accounts on the system has been
having e-mail delivered to it bounce, with an "no mailbox found" error
for cyrus' lmtp, but only with some e-mails.. and from the logs it seems
it is the e-mails that have mixed case.. ie. User at MyDomain.com, get
bounced but not the *normal* user at mydomain.com case..

Is there anyway I can have either postfix or cyrus lower the case on the
e-mail address? (but not the + recipient_delimiter information)

Here are my logs..

Feb 29 10:03:45 ns3 lmtpunix[8837]: append_check() of
'mydomain.com!user.User' failed (Mailbox does not exist)
Feb 29 10:03:45 ns3 lmtpunix[8846]: executed
Feb 29 10:03:45 ns3 postfix/lmtp[8845]: 064161A4003:
to=<User at mydomain.com>,
relay=/var/lib/imap/socket/lmtp[/var/lib/imap/socket/lmtp], delay=1,
status=bounced (host
/var/lib/imap/socket/lmtp[/var/lib/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))
Mar  2 20:52:40 ns3 lmtpunix[12474]: accepted connection
Mar  2 20:52:40 ns3 lmtpunix[12474]: lmtp connection preauth'd as
postman
Mar  2 20:52:40 ns3 lmtpunix[12474]: append_check() of
'MyDomain.com!user.User' failed (Mailbox does not exist)
Mar  2 20:52:40 ns3 master[12483]: about to exec
/usr/lib/cyrus-imapd/lmtpd
Mar  2 20:52:40 ns3 lmtpunix[12483]: executed
Mar  2 20:52:40 ns3 postfix/lmtp[12482]: B24DE1A4003:
to=<User at MyDomain.com>,
relay=/var/lib/imap/socket/lmtp[/var/lib/imap/socket/lmtp], delay=0,
status=bounced (host
/var/lib/imap/socket/lmtp[/var/lib/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))

-- 
Edward Rudd <eddie at omegaware.com>
Website http://outoforder.cc/