Postfix DNS-problem
Hi,
I have trouble setting up Postfix (2.1.4-5) sending mail (receiving
mail works fine) on an up to date sarge system.
I have no local DNS-server running on that machine. DNS queries with
dig or host works fine!
My Problem: When I try to send mail with Postfix (i.e. to
something@web.de), Postfix starts a correct DNS-query for the
MX-Record of web.de. (I have done a tcpdump to verify that). Postfix
also gets the correct answer (mx-ha01.web.de in this example).
But than postfix didn't start a DNS-query for the A-Record of the
MX-Host (as I can see in the output from tcpdump). Instead Postfix
writes to syslog:
Sep 28 17:34:56 host postfix/smtp[12455]: warning: no MX host for web.de has a valid A record
Why can Postfix start an correct DNS-query for the MX-Record but isn't
going to ask the DNS-server for the A-Record of the MX-Host?
Thanks
Florian
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