Ralph Angenendt wrote: > Scott Silva wrote: >> AFAIR yahoo only looks for proper SPF records and then looks at content >> so far. My users interact with them all the time. > > Out of curiosity: What happens if you don't have SPF records? > you'll be beaten to death by SPF fans. other than that, nothing. I will put SPF records when outblaze does! $ host -t txt mail.com mail.com has no TXT record and since we're talking about yahoo: $ host -t txt yahoo.com yahoo.com has no TXT record Besides, in the OP case, SPF will change nothing for mail getting out of his server, since his sender domain matches his client domain (this is what gmail calls "guessed SPF"), and in addition, his client is the MX of his domain, so he is not going to forge his own domain on his own server.