[AusNOG] bigpond mail problems?

[Ross Wheeler]

On Mon, 7 Nov 2016, Narelle wrote:

> Just to clarify - it's the mail relay that is causing our trouble. Our mail
> server can't locate the telstra service used as a relay agent due to
> blacklisting...

>> and it seems to be because our smtp.telstrabusiness.com has been
>> blacklisted by spamcannibal due to an incorrect reverse dns according to
>> http://mxtoolbox.com/ blacklist checker...


I've checked, that site has checked my servers against its "108 known 
blacklists" and comes back green tick and "OK" for every blacklist and 
every one of my servers.

My mail queue continues to grow  at a gentle rate of about 50 msgs/hr (it 
seems to have started at about 8am yesterday/sunday), and 100% of the 
queued but undeliverable mail are to recipients either @bigpond.com, or 
domains that still use extmail.bigpond.com.

I expect when their customers start asking why they are not getting mail, 
bigpond will do the usual "it's not us, it's them" point-and-shoot blame 
reassignment routine.