I'm hoping that this problem is not in the latest version of SpamFilter.
I'm seeing in .403 that SpamFilter is ignoring the sender email address domain and is validating host is ok to send in the host's domain. That is only supposed to happen IF there is no sender email address available. This is a bug in .403.
For example here's a spam I got from a bogus sender that SpamFilter incorrectly validated the host domain (interelate.net) for instead of the sender's domain (broderbund.com):
02/17/05 10:57:42:495 -- (1896) Connection from: 64.73.138.124 - Originating country : United States 02/17/05 10:57:42:736 -- (1896) Resolving 64.73.138.124 - transit124.email.interelate.net 02/17/05 10:57:42:946 -- (1896) found SPF record: v=spf1 ip4:64.73.138.0/24 -all 02/17/05 10:57:42:946 -- (1896) SPF query result: 02/17/05 10:57:42:946 -- (1896) - SPF analysis for info.broderbund.com done: - pass 02/17/05 10:57:42:946 -- (1896) Mail from: mailto:info@info.broderbund.com - info@info.broderbund.com 02/17/05 10:57:43:447 -- (2916) - MAPS search done... 02/17/05 10:57:43:547 -- (1896) - MAPS search done... 02/17/05 10:57:43:547 -- (1896) RCPT TO: mailto:pcmatt@idp.net - pcmatt@idp.net accepted 02/17/05 10:57:44:278 -- (1896) EMail from mailto:info@info.broderbund.com - info@info.broderbund.com to mailto:pcmatt@idp.net - pcmatt@idp.net was queued. Size: 18 KB, 18432 bytes
I didn't want to upgrade because we're not validating subdomains for SPF after .403, but .403 is ignoring sender email address domains for SPF.
-Matt R
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