On Sun, Nov 03, 2002 at 04:32:25PM +0100, Markus Schabel wrote:
> When testing our mailserver from
> http://members.iinet.net.au/~remmie/relay/ it accepts mail with nothing
> in the from field (<>) and a virtual user in the to field, all other
> variations are rejected. What can I do to prevent this? Or is this
> behaviour ok?
>
> To: markus.schabeltgm.ac.at
> From:
> <<< 250 Ok
> >>>> MAIL FROM:<>
> <<< 250 Ok
> >>>> RCPT TO:
> <<< 250 Ok
> >>>> DATA
> <<< 354 End data with .
> >>>> MESSAGE
> <<< 250 Ok: queued as 0DB29EB

Why do you block mail to "postmastertgm.ac.at"?
Or does postmastertgm.ac.at not exist?

Or do you block all mail with an empty sender (that way you cannot
receive bounces!)?

# /usr/local/scripts/check-null-mail-host.pl tgm.ac.at

Host: tgm.ac.at
MX: mail.tgm.ac.at(10)
MX: wing.tgm.ac.at(20)
Checking IP: 193.170.8.132 [MX:10(mail.tgm.ac.at)] - OK
Checking IP: 193.170.8.41 [MX:20(wing.tgm.ac.at)] [RBL:ordb.org] - FAILED(MAIL)
Failure:
  While talking with 193.170.8.41 on Sun Nov 3 16:36:37 2002
  220 wing.tgm.ac.at ESMTP Sendmail 8.8.7/8.8.7; Sun, 3 Nov 2002
16:38:32 +0100
  HELO hauptpostamt.charite.de
  250 wing.tgm.ac.at Hello hauptpostamt.charite.de [193.175.66.220],
pleased to meet you
  MAIL From: <>
  250 <>... Sender ok
  RCPT To: <postmastertgm.ac.at>
  551 <postmastertgm.ac.at>... we do not relay
ERROR: Bad response from IP: 193.170.8.41
ERROR: At least one host failed the check.

>
> regards
>
> --
> Markus Schabel
> |---------------------------------------------
> | TGM - Die Schule der Technik |
> | IT-Service |
> | A-1200 Wien, Wexstrasse 19-23 |
> | Tel.: +43(1)33126/316 Fax: +43(1)33126/154 |
> | eMail: markus.schabeltgm.ac.at |
> ---------------------------------------------|
>
>
> -
> To unsubscribe, send mail to majordomopostfix.org with content
> (not subject): unsubscribe postfix-users
>

-- 
Ralf Hildebrandt                                Ralf.Hildebrandtcharite.de
Postfix Tips: http://www.arschkrebs.de/postfix/ Tel.  +49 (0)30-450 570-155
I fit in my suit, my suit fits in my suitcase.
Hence i fit in my suitcase.  
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