IP-Tests / SPF record

Get your SPF record

Sender Policy Framework (SPF) is a security standard that has been implemented to stop forgery of sender address. Domain owners can say "I only send mail from these servers" which helps to separate forgeries from real mail by using SPF record.

If you have an SPF record you must ensure that all sending servers are mentinoned there, or your message could be considered spam and end up in some junk folder.