Postfix and mixed case usernames

[Alexander Dalloz]

Am Do, den 19.01.2006 schrieb John Francis um 14:23:

> > > Sending mail to userone works fine, but not so with UserTwo.

> Most MTAs don't strictly enforce this and try to treat the local-part
> case insensitively.  This means that whether I send it to usertwo or
> UserTwo or USERTwo, it should (by convention, in non-compliance with
> the RFC) go to the same mailbox.
> 
> It appears that this is in fact what happens in Postfix.  To avoid
> confusion it just lcases the local-part and attempts delivery.

Sendmail too blames you when using capital letters in usernames.

> This is an issue with Unix accounts because usernames are
> case-sensitive, but I whether that is the case with Cyrus-IMAPd.

Cyrus-IMAPd knows the option for imapd.conf `lmtp_downcase_rcpt: yes'.

> John Francis

Alexander


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Alexander Dalloz | Enger, Germany | GPG http://pgp.mit.edu 0xB366A773
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