I don't know five Blockbuster customers who care enough about SPF to rent
somewhere else. In fact, I don't know one who even knows what SPF is.
Trying to change the world has zero chance of success. Changing email
protocols is a long shot, but one I'm willing to spend some time on.
Not that hard, just need to give example :
- Many mails received in my domains are invalid and already marked by
spamassasin because of .... Whathewer ....
Right now I'm using SPF :
- fail is fail -> rejected
- pass -> -1 spamassasin score
- softfail -> +4 spamassasin score
- neutral -> +2 spamassasin score
When any mail is rejected I always can explain (4 is marked as SPAM, 8 is
rejected)
- you have invalid .... (headers, content, body ...., also invalid SPF). If
you want to decrease score by 3 made one valid (terminated with -all) SPF
definition.
80% admins accept this always, they just don't know before it "wtf is spf
???" ;)
I hope you all understeand what want to say, my english is realy .... Let's
say bad ;)