From: Ralf Hildebrandt (Ralf.Hildebrandtcharite.de)
Date: Fri Mar 14 2008 - 07:50:08 CDT

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* AlxFrag <alxfraggmail.com>:
> Hi,
> i'd like to ask if it is possible to avoid date spoofing in emails.
> Supposing there is a deadline for paper submission through emails, one
> can change the date and time on his mail client and put it in the past.

But the Received: Header will eventually tell the truth.

> The person who receives his email could simply check the mail headers and
> see the true date. An average user might not think to do that.

Yes.

> Is it possible for postfix to write the correct date on the incoming emails?

You could try and remove the Date: Header using header_checks:

/^Date:/ DISCARD
or
/^(Date:.*)/ REPLACE X-$1

--
Ralf Hildebrandt (Ralf.Hildebrandtcharite.de) snickebocharite.de
Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155
http://www.arschkrebs.de
Remember that the objective of any Microsoft product upgrade is to
stimulate sales.

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