[PLUG] Postfix Case Sensitive
Michael Rasmussen
mikeraz at patch.com
Mon Sep 20 11:29:02 UTC 2004
On Mon, Sep 20, 2004 at 10:46:28AM -0700, R. Haack wrote:
> Ok, we put our new email server in place over the weekend and it seems
> that it is being case sensitive with the users email names. Is there a
> setting in Postfix to tell it to ignore the case of convert it to lower
> case?
>
> Thanks again for all of the great help you guys provide.
Postfix treats all entries as lower case. If that's not what you
want see the Q&A at:
http://www.kobitosan.net/postfix/QandA-en.html#2.16
A. Postfix local daemon replaces uppercase letters of recipients with lowercase one, that is, mails for User, UsEr, USER are treated as for user. When you send a mail to a local user User, Postfix looks for not User but user and User can't receive the mail.
Translation into lowercases also happens when reading passwd file in local_recipient_maps and building aliases databases with newaliases, postalias commands.
If you want to have postfix receive mails for users whose name contain uppercases, you may need to configure as follows:
1. add a map with the users to local_recipient_maps (you need an additional map because entries in passwd file are translated as lowercase).
2. add a master.cf entry that calls case-sensitive MDA with pipe, and set the transport to $local_transport parameter. Don't use the u flag in pipe.
--
Michael Rasmussen, Portland Oregon
Be appropriate && Follow your curiosity
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