From: mouss (moussnetoyen.net)
Date: Sun Aug 17 2008 - 12:24:02 CDT

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Ebbe Hjorth wrote:
> Hi,
>
> One of my users tried sending a mail where the name in the to field,
> contained two commas (,) - It looks like postfix looked at it and thought
> that the commas seprated email addesses and not first and last name.
>

when asking questions or reporting problems, you should always give
information.

- show the To header in question.
- tell us how the message was submitted to postfix (sendmail command or
smtp, from the same machine or from another one, ... etc).
- show the output of 'postconf mail_version; postconf -n'

> Is that normal? I thought that only semi-colon separated addresses?
>
> Can it be disabled?

http://www.postfix.org/ADDRESS_REWRITING_README.html#standard
http://www.postfix.org/postconf.5.html#local_header_rewrite_clients
http://www.postfix.org/postconf.5.html#remote_header_rewrite_domain

>And does it have any down sides?

if the mailer generates borked headers, it is not wise to let these go
to the ether without fixing them.

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