BETA: Max SpamAssassin Size for sendmail and Postfix

[Peter Russell]

Hmm it does seem like a further complication that most of us wont use.

But i do appreciate the fine level of tuning that is there if we need it 
as well.

I was going to suggest it might be worth categorising the config file 
further based on level of complexity or likelihood that it will need 
modding by your basic users, or having 2 config files - but all of this 
is yet another level of complexity...



Julian Field wrote:
> I have added the new logic to the Max SpamAssassin Size configuration 
> option, with just about all the extra features everyone wanted in here.
> 
> # SpamAssassin is not very fast when scanning huge messages, so messages
> # bigger than this value will be truncated to this length for SpamAssassin
> # testing. The original message will not be affected by this. This value
> # is a good compromise as very few spam messages are bigger than this.
> #
> # Now for the options:
> # 1) <length of data in bytes>
> # 2) <length of data in bytes> truncate
> # 3) <length of data in bytes> continue <extra bytes allowed>
> #
> # 1) Put in a simple number.
> #    This will be the simple cut-off point for messages that are larger 
> than
> #    this number.
> # 2) Put in a number followed by 'trackback'.
> #    Once the size limit is reached, MailScanner reverses towards the start
> #    of the message, until it hits a line that is blank. The message passed
> #    to SpamAssassin is truncated there. This stops any part-images being
> #    passed to SpamAssassin, and so avoids rules which trigger on this.
> # 3) Put in a number followed by 'continue' followed by another number.
> #    Once the size limit is reached, MailScanner continues adding to the 
> data
> #    passed to SpamAssassin, until at most the 2nd number of bytes have 
> been
> #    added looking for a blank line. This tries to complete the image data
> #    that has been started when the 1st number of bytes has been reached,
> #    while imposing a limit on the amount that can be added (to avoid 
> attacks).
> #
> # If all this confuses you, just leave it alone at "40k" as that is good.
> Max SpamAssassin Size = 40k
> 
> I have only added the logic to the sendmail and Postfix versions so far, 
> as I want to be sure it works before I give it out to everyone.
> 
> It's on www.mailscanner.info as usual.
> 
> *Please* can you test this out for me. If you think I have gone over the 
> top, and just produced a system that no-one can work out how to use, 
> then please do tell me and I will remove bits of it again. Personally I 
> think it will only be used by 1% of users at most, which leads me to 
> think I should remove the whole thing and go back to something much 
> simpler again.
> 
> Your thoughts?
> 
>