Mark Constable ha scritto: > I'm somewhat stunned this has not been more of a noticable problem for > anyone using SPF... and that I haven't noticed it myself until now even > though we've been using SPF for the past year.
Well, it has been the source *many* discussions, and many consider this to be the weakest point of SPF. Actually, it is the weakest point of mail forwarding, see http://en.wikipedia.org/wiki/E-mail_forwarding#Historical_development_of_email_forwarding Trying to make a long story short, * if your business is massive email forwarding, you need SRS to regain control on dynamically building the return-path, which rfc1123 broke, * if someone having access to user's directory manually writes a forwarding recipe, use maildrop and set -f to the recipe writer's or postmaster address, * except when forwarding to the same server: In this case _alias expansion_ (i.e. w/o -f, as opposed to _list expansion_, the two forwarding methods that the SMTP specs provide for) is just fine. That state of affairs is obviously wrong... ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ courier-users mailing list courier-users@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
