I have setup a Kerio brand mail server within my domain.
I have established the correct A Records as well as the Reverse PTR DNS Records. I have also added an SPF Record to the DNS Zone and have tested it to make sure it Passes.
Everything seems to be ok, however when I send ANY test messages to yahoo, they ALL go in to the BULK Folder.
I have checked my server IP on www.mxtoolbox.com
, The server is not listed on any of the 143 RBL's
Can someone give me any pointers or things to change possibly?