29 Aug
2003
29 Aug
'03
4:15 p.m.
You seem to be misunderstanding the issue. Let's say you work at someplace.edu. You want to send mail from home. With the SPF-type schemes being discussed, your mail MUST come from someplace.edu's server.
If someplace.edu won't set up an SMTP AUTH relay, what do you do? Your dialup account will let you use the dialup ISP's mail server... But your mail will get bounced because it's not something from someplace.edu.
Hence, if no SMTP AUTH relay, you're screwed.
Port forward 127.0.0.1:25 through to someplace.edu:25 using SSH. Or VPN. Or ... More than one way to skin this cat. -matt