Reverse DNS Tool
Check your IP's rDNS against AOL's name-servers to ensure you have reverse DNS and that it has propagated to the AOL network. If you have recently changed your rDNS, please allow 48-72 hours for full propagation across the Internet.
Please ensure that your IP does not have a generic looking reverse DNS. We might reject mail from rDNS containing these words – pool, in-addr.arpa, dyn, dhcp. We recommend that your rDNS points to your domain name.