Bernd Wurst wrote: > Hi. > > Am Montag, 5. November 2007 schrieb Alessandro Vesely: >>> SPF is fairly effective at what it was designed to do. >> I'm not sure what you mean by "fairly". It is not effective. >> It was designed to be widely adopted and it is not. > > SPF can only get spread if the forwarding-problem gets solved. SRS is a > proposition for this but is not that accepted (see, courier doesn't support > it because Sam calls it broken (iirc)).
IMHO forwarding is not a problem. Although I admit I had to amend a few scripts, typically adding a "-f [EMAIL PROTECTED]" in the relevant command line, where <[EMAIL PROTECTED]> is delivered to the person who can remove that command line (me, in my case). When a forwarding fails, I just remove it. If a DSN is required I send it manually. In facts, I have no automated methods to add forwarding rules. The problem is for sites who can add lots of forwarding rules automatically. They must be able to also remove them automatically when they fail. SRS lends a technique for passing a unique bounce number. Receiving a bounce should remove the failed forwarding rule, besides forwarding the bounce to the original recipient: better design that carefully. Hence, although SPF apparently complicates life for mass forwarders, it also forces them to work sensibly. > So if one enforces SPF (or, rejects messages with failed SPF checks), he > relies on every one else implements SRS (or something similar) or breaks > regular forwarding to his host. Yes, people cannot illegally forward foreign messages. That is consistent with European privacy rules. > SPF standalone doesn't really help anything. It helps the owner of a domain to avoid that others abuse of it. Its relevance as an anti-spam device is to force spammers to send from their own domains, so that receivers know where they may claim damages. (Which will only happen when all hosts have SPF records) ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ courier-users mailing list [email protected] Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-users
