Amira Othman:
> Hi all
>
> I am using postfix 2.8.4 on centos 5.8 and recently I installed bind9 on
the
> same server to have my own DNS server. I didn't change MX record of mail
> server as I am still testing configuration and newbie but I noticed that
> outgoing mails stopped being delivered and I don't know why as I don't
> change anything in postfix or MX records what may cause that?
Postfix logs all attempts to send or receive mail, whether or
not these attempts are successful.
I suggest you look there first.
Wietse
This is log error
from=<a.oth...@cairosource.com>, size=11908, nrcpt=1 (queue active)
May 28 10:20:28 cairosource postfix/smtp[32092]: AC8596E684AB:
to=<test_ca...@yahoo.com>, relay=mx01.hmc1.comcast.net[76.96.53.13]:25,
delay=2.1, delays=1.9/0.02/0.24/0, dsn=4.0.0, status=deferred (host
mx01.hmc1.comcast.net[76.96.53.13] refused to talk to me: 554
imta01.westchester.pa.hmc1.comcast.net bizsmtp x.x.x.x Comcast requires that
all mail servers must have a PTR record with a valid Reverse DNS entry.
Currently your mail server does not fill that requirement. For more
information, refer
to:http://worknetkc.st.comcastsupport.com/sdccommon/asp/defcontent_view.asp?
ssfromlink=true&sprt_cid=bb859780-1131-4fbf-b307-4798d1e628f0)
My resolve.conf contains just nameserver 127.0.0.1 and I didn't setup
reverse DNS yet. But MX record of this domain is not on my DNS it's another
DNS server.
