Paul Howarth wrote:
The URL referenced in the rejection suggests that this is a content-based rejection, Maybe AOL are rejecting mail from some commonly-compromised web apps? Strange though that the mail should go through if you send it via your own mail server and not your ISP's.
I think AOL will only accept mail from servers for which the forward *and* reverse DNS match the server's IP actual address, though this might not be what is catching your server out, as I thought they gave a quite explicit message when failing their DNS tests.
