[BlueOnyx:17174] TalkTalk bounce
colin at mainline.uk
Wed Mar 4 10:31:01 COT 2015
We are seeing mail sent from one of our relay servers to TalkTalk email addresses bouncing off their mail servers:
"554 Your access to this mail system has been rejected due to the sending MTA's poor reputation."
Our server details seem squeaky clean - no RBL listing, reverse lookup works and matches mx records. SPF is good etc.
Server in question: server1.fast-mail.net if anybody wants to check!
Further investigation shows that although the sender is relaying off our server the TalkTalk server is picking up his home ADSL IP:
The original message was received at Sun, 1 Mar 2015 19:23:59 GMT
from 78-33-150-88.static.enta.net [220.127.116.11]
This is a bog standard 5207R and we have no problem with anybody else.
Can anybody suggest a kludge to get around this?
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