can we block mails with perticular subject line

Julian Field MailScanner at
Sun Jun 25 16:01:50 IST 2006

On Sun25 Jun 06, at 01:46, Res wrote:

> On Sat, 24 Jun 2006, Julian Field wrote:
>> The reason that MailScanner doesn't do this is that I also  
>> consider it part of SpamAssassin's job. You can't just do simple  
>> keyword checking due to all the words that will trigger false  
>> alars, think of little birds called "blue tits" and a place in  
>> England called "Scunthorpe". So you need a score-based system  
>> looking for likely-sounding words. There already is one of those,  
>> and it is very good too. It's called SpamAssassin.
>> So please don't expect this feature to appear any time soon...
> I modified all of our sendmail boxes to use regex in subject years  
> ago they work fine, i'll try a program someone else mentioned here  
> recently that qmail can use, pitty if an mta can do it with what we  
> beleive to be 0.01% false hits, MS cant :) oh well. life goes on

There are a few practical problems, such as how to encode spaces and  
tabs and stuff like that in a configuration option. And what would I  
actually report? The current reporting emails contain the original  
subject. Doing this in MailScanner would be cool, I guess, but there  
are all sorts of practical problems doing it. And what would you  
actually want to do with the message contents? I guess you want to do  
similar handling to spam.

I guess it could be a list of regexps which caused a message to be  
spam. But it would also have to replace the subject line, so it's not  
just straight spam.

This would be a real mess to implement, and SpamAssassin is far  
better at it anyway. It's dead easy to write a few SpamAssassin rules  
to do the simple stuff you are trying to do.

So I'm still going to leave it to SpamAssassin, sorry.

Julian Field
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