Trying to use uppercase names in Postfix.
mah at jump-ing.de
Mon Dec 29 17:54:34 UTC 2008
Am 29.12.2008 um 18:24 schrieb Xn Nooby:
> I am using Postfix to replace an existing email system, and I am
> inheriting usernames that are in uppercase. Apparently Postfix
> converts all email addresses to lowercase, so I cannot receive mail to
> the accounts that are in uppercase. This surprised me, because the
> linux user accounts are in uppercase.
While Email adresses are case insensitive (jim123 at gmail.com ist the
same as jim123 at Gmail.COM), Unix/Linux user accounts are case
sensitive. JIM123 ist allowed as well as Jim123 or jim123, but those
three are three different user names.
Now, postfix' behaviour might be intentional, because I've never seen
an Unix or Linux username containing upper case characters, but on
how to fix ot how to work around the mismatch you observed I'd
suggest visiting a postfix mailing list.
 please don't confuse this with a user's real name which is stored
in /etc/passwd as well and contains upper case characters as well as
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Dipl. Ing. Markus Hitter
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