large spam messages

[Jude DaShiell <jd...@panix.com>]

Since spamassassin cannot handle large spam over 2MB in size, what can be 
used to handle that class of junk?  Maybe some of you have got messages 
from 3 Bureau Monitoring.  I get those probably twice daily and much as I 
dislike it, I will probably terminate that other internet account when 
time for it runs out.
Another account I have uses the web version of spamassassin so when I have 
to start using that I'll find out what it can do.

Re: large spam messages

[Ian Zimmerman <it...@buug.org>]

On Thu, 4 Sep 2014 12:52:34 -0400 (EDT),
Jude DaShiell <jd...@panix.com> wrote:

Jude> Since spamassassin cannot handle large spam over 2MB in size, what
Jude> can be used to handle that class of junk?

I use a script on the MX host to MIME reshape all large messages, dropping
all non-text attachments, and save them to files there, before forwarding
to my IMAP server.  If such a message is ham (which is almost never) it
is easy enough to download the files after the fact.

Can share the script for the asking.

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Re: large spam messages

["Kevin A. McGrail" <KM...@PCCC.com>]

On 9/4/2014 12:52 PM, Jude DaShiell wrote:
> Since spamassassin cannot handle large spam over 2MB in size, what can 
> be used to handle that class of junk?  Maybe some of you have got 
> messages from 3 Bureau Monitoring.  I get those probably twice daily 
> and much as I dislike it, I will probably terminate that other 
> internet account when time for it runs out.
> Another account I have uses the web version of spamassassin so when I 
> have to start using that I'll find out what it can do.
First, SpamAssassin I believe handles a max of 256MB unless via SpamC/D.

Beyond that, I use 3 key techniques which might help you:

First, I raise and lower the limit based on load average on the system.
Second, I truncate the data at the limit from #1 and use the results 
with fairly good results.
Third, I blacklist certain attachments / images by hashing the content.

Regards,
KAM