Comment to 'blocked emails and email best practices in software design'
  • I talked about this with my provider and she said that if you are running your own mail server to make sure you have rDNS, SPF, DKIM set up.  You may have to request the rDNS with the company that provides the IP address.  The SPF is a text record in your DNS server for the domain; there are SPF generators on the net. She also mentioned that if you are on PLESK that they will default the mail server to an open relay; that will quickly get you banned.  Never run a mail server as an open relay.

    • thanks Will Monte , i will look up the acronym soup you provided for the ones i dont know.   im pretty sure my thing is set to the hilt, because its a managed image, that i have the ability to disable, and just tweak everything on the server, but i will look.  ...    thank you.  and yeah, never never never open relays.  i know for sure i am not doing that.    text copied and pasted for later research.  thanks again :)