[courier-users] Problem with upper-case mail-adresses

[Christoph Mühlmann]

Hello,

my problem:

I've setup an alias:

c.mue...@nagnag.de: c.mue...@web.de

When I send a mail to c.mue...@nagnag.de everything works fine. But a
mail to C.Mue...@nagnag.de (C and M upcase) it won't work, I get an
error like this:

courieresmtpd: error,relay=::ffff:217.91.141.74,from=<c.mue...@gmx.de>,to=<C.Mue...@nagnag.de>: 550 User unknown.

I've searched the server-documentation a while but I found nothing why
courier makes a difference between uppercase and lowercase adresses...

any ideas?

thanks,

Christoph

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[Bowie Bailey]

Christoph Mühlmann wrote:
> Hello,
>
> my problem:
>
> I've setup an alias:
>
> c.mue...@nagnag.de: c.mue...@web.de
>
> When I send a mail to c.mue...@nagnag.de everything works fine. But a
> mail to C.Mue...@nagnag.de (C and M upcase) it won't work, I get an
> error like this:
>
> courieresmtpd: error,relay=::ffff:217.91.141.74,from=<c.mue...@gmx.de>,to=<C.Mue...@nagnag.de>: 550 User unknown.
>
> I've searched the server-documentation a while but I found nothing why
> courier makes a difference between uppercase and lowercase adresses...
>
> any ideas?
>

>From the courier man page:
=====================
locallowercase
If this file exists, the Courier mail server will not
distinguish being lowercase and uppercase local
accounts, so that jo...@example.com and Jo...@example.com will
refer to the same local mailbox (where
example.com is your domain). Postmaster, postmaster, and
POSTMASTER always refer to the same account,
even if locallowercase does not exist.

Note
If locallowercase exists you cannot have any system
accounts that contain uppercase letters.
locallowercase applies only to local mail. Mail addressed
to external domains will always have the
case of the addresses preserved.
=====================

This file goes with all of the other Courier config files, normally
/etc/courier. You don't need anything in the file, just create it.

--
Bowie

[Bernd Wurst]

Hi Christoph.

Am Donnerstag 12 November 2009 18:44:21 schrieb Christoph Mühlmann:
> I've searched the server-documentation a while but I found nothing why
> courier makes a difference between uppercase and lowercase adresses...

So you should search again. ;-)

Hint:
http://www.courier-mta.org/courier.html
Look for "locallowercase".

Sincerely,
Bernd

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