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What does this message mean?
Since the recent zmailer upgrade I had several bounces like:
Original Recipient:
rfc822;foo@bar.de
Control data:
smtp frob.de foo@bar.de 99
Diagnostic texts:
smtp; 500 (DNS: MX host does not support SMTP: bar.de)
What is causing a ``MX host does not support SMPT:'' error?
I was speculating it might be related to WKS records without SMTP but none
of the MX hosts has a WKS record at all.
Ralf