Comments on: SMTP address/ip outgoing

By: Troy Tate

Troy Tate — Mon, 28 Sep 2009 11:54:27 +0000

You need to go to cbl.abuseat.org and find out why your email domain is blacklisted. Apparently the receiving organization is subscribing to some type of blacklist and your sending IP or domain is listed there. You can also ask the receiving organization to add you to a whitelist or permit list and that should permit messages to be delivered.

By: pree

pree — Sat, 26 Sep 2009 07:46:35 +0000

Thanks for the support.
This is the exact issue. As i said earlier our mails are coming via a g/w device x.x.x.10 and our outgoing mails are configured to forward mails using the mail server directly which is x.x.x.12. But when we send mails to some of our clients they are getting bounced back message
“< client address>;host smtp2.myonlinedata.net[207.5.72.155] said: 554 5.7.1 Service unavailable; Client host [x.x.x.10] blocked using cbl.abuseat.org; Blocked – see http://cbl.abuseat.org/lookup.cgi?ip=x.x.x.10 (in reply to RCPT TO command) , where x.x.x.10 is the ip of our gateway device which is only for the inbound mails. But this message seems like saying it is going via x.x.x.10 not using x.x.x.12.

But when i check the header as labnuke said i am getting x.x.x.12 which is ip of our mail server and it right but i dont understand why bounce back is specific the ip of our gateway device.
Plz support….

By: gabe9527

gabe9527 — Fri, 25 Sep 2009 13:57:54 +0000

Check the Exchange System Manager > expand your server then check the settings there.

You should see if you are forwading your SMPT through a gateway from there.