Re: private relay ... could i use srs to avoid spf fail?

In <[email protected]> "Dick St.Peters" <[email protected]> writes:

> If you use SRS to reject bogus DSNs, you will also reject return
> receipts from Outlook (and probably Outlook Express) users.

Are you saying that Outlook doesn't send DSNs to the 2821.MAILFROM, as
RFC3834 says to?  If so, what does it send it to instead?


> Rejecting non-SRS DSNs also rejects responses from some
> autoresponders.  While many people might think of this as a Good
> Thing, I have users who consider out-of-office notifications
> valuable.

Again, it sounds like those systems are broken by not sending to the
2821.MAILFROM.


> Rejecting non-SRS DSNs naively also rejects postmaster-verification
> callbacks, causing some sites to reject your mail.

Again, those systems sound broken.  If a call-back verification is
checking the 2821.MAILFROM, it should give use a NULL MAIL FROM on the
check (and a RCPT TO do the original 2821.MAILFROM).  If the call-back
verification is using something like the 2822.From: header, it should
use something like <[email protected]> as the
2821.MAILFROM.



Yeah, I know, lots of broken systems out there and people may well
want to accept email from them.  I'm just curious about your
experiences with using SRS on everything.


-wayne