spam.backlist.rules vs sendmail access file

[Richard Smith]

Been having issues with a virus using specific addresses as a from  
address that happens to be a valid address, but no one should be  
sending anything from it (a basic group mail address in /etc/aliases).

At first I put "From: groupaddress at host yes" in spam.blacklist.rules  
however this has proved to be unreliable, I have sinced put "From:  
groupaddress at host REJECT" into my /etc/mail/access and while it's too  
soon to know the difference I'm expecting this to have better results.

My question is, which is better to use when, I'm suspecting /etc/mail/ 
access is better to a point, but where is that point, do I really  
need to bother with spam.blacklist.rules at all?

-- 
http://www.mediadesign.school.nz/

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