+ 0 Votes why do you have the sonicwall doing DNS? CG IT 6 years ago Unless the Sonicwall device is authoritative for your FQDN, you shouldn't have it doing DNS resolutions. I know many do this but... having a firewall router device also handle DNS services for the FQDN zone can cause untold problems with DNS and Active Directory. + 0 Votes well... formerly CallPete.com 6 years ago I think the SPF should have the IP address of the valid SMTP server. AOL doesn't blacklist by default, but once you get blacklisted, you need to be nice to them to get un-blacklisted. Good thing you aren't blacklisted. Checking regularly will help. + 0 Votes SPF Record formerly CallPete.com 6 years ago You probably want to do three things: 1. Set up a SPF record for your domain. This tells AOL (and everyone else) that any email from your domain (that's not from YOUR SMTP server) is probably a spammer. 2. Go to www.aol.com and jump through their hoops to get un-blacklisted. 3. go to http://www.dnsbl.com/ and put in your IP address of your SMTP server to make sure your ip address isn't blacklisted elsewhere. If it is, follow the instructions to get un-blacklisted.