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Does this also means that we will received alot of
spam mail?
thanks
----- Original Message -----
Sent: Thursday, April 29, 2004 10:01
AM
Subject: RE: email problem
> From: Toto Gamez
> To: redhat-list@xxxxxxxxxx
>
Subject: email problem
>
> Hi
> We're having problem in
receiving e-mail, our pque branch is connected
> to the internet via
myDSL. They are sending email thru smtp.info.com.ph
> as their smtp and
retrieved mail thru our pop3 located in Pasay (postfix)
> but everytime
they send email at our domain (@bonheur.com.ph) we cant
> received their
mails. When I checked the maillog it says:
>
> Apr 27 16:42:21
pasay postfix/smtpd[31895]: warning: 203.131.180.85:
> hostname
adsl-131.180.85.info.com.ph verification failed: Host not
found
[snip...]
In short, postfix is reporting that the A record
and PTR record for the
connecting IP do not match. Example: Using your log
entry above...
[scowles@voyager log]$ host
203.131.180.85
85.180.131.203.in-addr.arpa domain name pointer
adsl-131.180.85.info.com.ph.
[scowles@voyager log]$ host
adsl-131.180.85.info.com.ph
Host adsl-131.180.85.info.com.ph not found:
3(NXDOMAIN)
I'm not a postfix expert by any means, but I had to
configure postfix to be
slightly less restrictive with regards to what
postfix considers unknown
clients. I did so by commenting the following in
main.cf
# reject_unknown_client
Personally, I don't like
commenting the above, but there seems to be a lot
of IP addresses that do
not match A/PTR records from legitimate sources.
<groan>
Steve
Cowles
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