220-mtain-mi12.r1000.mx.aol.com ESMTP Internet Inbound
220-America Online (AOL) and its affiliated companies do not
220-authorize the use of its proprietary computers and compuer
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.
221 2.7.0 Error: I can break rules, too. Goodbye.
Connection to host lost.
Yes you can.