Spam Filter ISP Forums : prvs= overiding white list https://www.logsat.com/spamfilter/forums/ Sun, 19 Apr 2026 07:48:47 +0000 Tue, 02 Nov 2010 12:38:47 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 11.04 360 https://www.logsat.com/spamfilter/forums/RSS_post_feed.asp?TID=6890 <![CDATA[Spam Filter ISP Forums]]> https://www.logsat.com/spamfilter/forums/forum_images/web_wiz_forums.png https://www.logsat.com/spamfilter/forums/ <![CDATA[prvs= overiding white list : My routine for handling this...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6890&PID=13869&title=prvs-overiding-white-list#13869 Author: Thermo
Subject: 6890
Posted: 02 November 2010 at 12:38pm

My routine for handling this after releasing one from quarantine is to wildcard the sender in the AutoWhiteListForceDelivery.txt file. I open the file, do a find (CTRL+F), search term is prvs and then I wildcard the address up to the username.

This  prvs=59176D4360=username@domainname.com|user@ourcompany.com
Becomes this *username@domainname.com|user@ourcompany.com]]> Tue, 02 Nov 2010 12:38:47 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6890&PID=13869&title=prvs-overiding-white-list#13869 <![CDATA[prvs= overiding white list : Jeff,SpamFilter does not look...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6890&PID=13867&title=prvs-overiding-white-list#13867 Author: LogSat
Subject: 6890
Posted: 01 November 2010 at 4:15pm

Jeff,

SpamFilter does not look at the "From:" header when handling sender's addresses, as this is just a header, not the real sender's address. SpamFilter instead acts upon the address specified in the "RCPT TO" SMTP command. This address is recorded in the "X-SF-RX-Return-Path" header that is added to the email by SpamFilter, and which will usually also match the email address specified in the "Return-Path" header.

When examining the sender's address in order to whitelist them, you will need to look at this "RCPT TO" address, not the one in the "From:" header.
]]> Mon, 01 Nov 2010 16:15:55 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6890&PID=13867&title=prvs-overiding-white-list#13867 <![CDATA[prvs= overiding white list : We have a company that seems to...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=6890&PID=13866&title=prvs-overiding-white-list#13866 Author: JeffHildebrand
Subject: 6890
Posted: 01 November 2010 at 12:47pm

We have a company that seems to be using a form of Bounce Address Tag Validation that keeps getting blocked.  I have tried adding the domain to the white list but the emails are continuing to be blocked?  The From fields is in the form of
prvs=59176D4360=username@domainname.com with the prvs=###= changing each time.
Is there anything else I can try to prevent the emails from getting blocked?
 
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