[governance] Re: ICANN Studienkreis

[Stephane Bortzmeyer]

On Tue, Aug 01, 2006 at 10:40:55AM +0200,
 Louis Pouzin <pouzin at well.com> wrote 
 a message of 20 lines which said:

> What's the problem with mailgate2.urz.uni-halle.de ?

[Yet another so called anti-spam protection, but uninformed people.]

It calls back your email server, to check that the return address is
valid. If you use greylisting (ENST does) or similar techniques, it
will fail. Check your logs. When you write to Wolfgang, you get the
callback:

Aug  1 11:14:30 ariane postfix/smtpd[29714]: connect from mailgate.urz.uni-halle.de[141.48.3.51]

and possibly a refusal:

Aug  1 11:14:30 ariane postfix/smtpd[29714]: NOQUEUE: reject: RCPT from mailgate.urz.uni-halle.de[141.48.3.51]: 450 <stephane at bortzmeyer.org>: Recipient address rejected: Greylisted for 300 seconds (see http://isg.ee.ethz.ch/tools/postgrey/help/bortzmeyer.org.html); from=<> to=<stephane at bortzmeyer.org> proto=SMTP helo=<mailgate.urz.uni-halle.de>
Aug  1 11:14:30 ariane postfix/smtpd[29714]: disconnect from mailgate.urz.uni-halle.de[141.48.3.51]
Aug  1 11:14:30 ariane postfix/smtp[29738]: 90FEC240814: host mailgate.urz.uni-halle.de[141.48.3.51] said: 451 Could not complete sender verify callout (in reply to RCPT TO command)
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