I have been trying to get mail flowing to AOL for months now.... I finally managed to figure out how to get an SMTP log from my send connector. The log contained the following:
attempting to connect
<,220-mtaig-mbc05.mx.aol.com ESMTP Internet Inbound,
<,220-AOL and its affiliated companies do not,
<,220-authorize the use of its proprietary computers and computer,
<,"220-networks to accept, transmit, or distribute unsolicited bulk",
<,220-e-mail sent from the internet.,
<,220-AOL may no longer accept connections from IP addresses,
<,220 which no do not have reverse-DNS (PTR records) assigned.,
<,220 2.0.0 Ready to start TLS,
<,554 The security certificate was issued by a company you have not chosen to trust.,
It seems to not like the certificate on the AOL server.... How in the world do I fix this?
Microsoft is conducting an online survey to understand your opinion of the Technet Web site. If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.