>> spf is broken by design. It only helps if you are aol or hotmail. > > Sorry, but what part of it's design is broken? I'm not aol, neither > hotmail and it has been helping me quite a bunch. > >>Those ISP I know that implemented it had to add a whitelist all entry >>because of mobile customers. In the end they could run just >>without it and be as happy. >> >> > I don't understand, what kind of mobile customer would be rejected by > spf? Shouldn't a mobile user be sending his e-mails through his ISP's > smtp server?
I think, if you use SPF, your customer must send emails through your smtp server. This might require TLS and SMTP AUTH support. You might need SSMTP service too. Qmail-LDAP patches don't include daemontools startup scripts for SSMTP. Some ISPs might block access to your SMTP server and require use of their SMTP server. SPF might tag or block emails that are sent through unlisted SMTP server. -- Tomas
