a client got a new IP address from Verizon. Seems that was misused by previous user since within days of getting on this new IP, mail is bouncing only from Microsoft. all the pages for checking public RBLs say it's a clean IP address.
and contacting microsft (at the email@example.com address they list in the RBL to contact) has gotten us nowhere.
I am starting to think - we can either wait / work on this problem, or just send through the Verizon mail server from our exchange server (is that what a smart host is?).
Any downside with that? mail won't say it came from their general Verizon mail account, right?
that would solve the problem, right?
They stil have the old T1 connection (for phones only now) that they were using before. what's involved to have the server send mail through the T1 and browsing via the FIOS? a dual wan router? 2nd NIC in the sbs 2011 box?