Spam Filter ISP Forums : Is Blank "Mail From" safe?

Spam Filter ISP Forums : Is Blank "Mail From" safe? https://www.logsat.com/spamfilter/forums/ Mon, 09 Mar 2026 20:20:55 +0000 Thu, 22 May 2003 12:54:00 +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=647 <![CDATA[Spam Filter ISP Forums]]> https://www.logsat.com/spamfilter/forums/forum_images/web_wiz_forums.png https://www.logsat.com/spamfilter/forums/ <![CDATA[Is Blank "Mail From" safe? : The problem is notif it's...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=647&PID=651&title=is-blank-mail-from-safe#651 Author: LogSat
Subject: 647
Posted: 22 May 2003 at 12:54pm

The problem is not if it's functional or not... The feature always worked correctly by rejecting email with a null MAIL FROM.

The issue is that some legitimate emails are sent with NULL mail froms. Examples are Postmaster/Sys Admin error messages, and Read/Delivery receipts.

It is up to the admins to decide if they want to enable the feature, thus blocking more spam, but also legitimate email.

Roberto Franceschetti
LogSat Software

]]> Thu, 22 May 2003 12:54:00 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=647&PID=651&title=is-blank-mail-from-safe#651 <![CDATA[Is Blank "Mail From" safe? : It was recomended in earlier releases...]]> https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=647&PID=647&title=is-blank-mail-from-safe#647 Author: dcook
Subject: 647
Posted: 22 May 2003 at 8:34am

It was recomended in earlier releases than 1.12.122 -- is is now functional and safe to turn on????]]> Thu, 22 May 2003 08:34:00 +0000 https://www.logsat.com/spamfilter/forums/forum_posts.asp?TID=647&PID=647&title=is-blank-mail-from-safe#647