> Back to the PTR RR: > > $ dig +short MX bobhoffman.com > 10 mail.bobhoffman.com. > ^^^^^^^^^^^^^^^^^^^^ > $ dig +short A mail.bobhoffman.com > 72.35.68.59 > $ dig +short -x 72.35.68.59 > bobhoffman.com. > ^^^^^^^^^^^^^^^ > > mail.bobhoffman.com != bobhoffman.com Careful here. Email senders have nothing to do with MX records. Email receivers do. I believe bobhoffman.com is the email sender in this case. I would doubt this is an issue. Any split in/out mail server is going to have a different host for receipt (MX) than send. -John