Recommended minimum SPF config :
v=spf1 +ip4:xxx.xxx.xxx.xxx +include:secureserver.net ~all
xxx.xxx.xxx.xxx = your VPS main server IP where the EXIM server runs on
Recommended minimum SPF config :
v=spf1 +ip4:xxx.xxx.xxx.xxx +include:secureserver.net ~all
xxx.xxx.xxx.xxx = your VPS main server IP where the EXIM server runs on