[ILUG] {LONG} sendmail smart host & procmail recipes

[Declan Grady]

Yes, Ideally I would liked to reject them sendmail end, but I couldnt figure
out how to do that !
(even after a lot of googling !)

In reality, what happens is that large mails come in to 2 or 3 people, and
then they send them on to all their friends, so that 1 meg video clip gets
sent out again about 20 times, and my poor wee 56k modem takes a while at
that task !

If i only have to accept 1 MB, and then not deliver it locally, it saves me
20 MB outgoing

I'm not too worried about virus (virii ?) as my mailscanner + f-prot
*should" take care of them, but I dont want to block .avi or .mpg files
across the board, like I do with .exe's and .scr's etc etc.

Is there an easy way in my procmailrc to say:

"if its has an attached file with a .mpg or .avi extension, AND its more
than 500K, reject it"

Cheers,
Declan


> Niall O Broin scribbled ..
> Subject: Re: [ILUG] {LONG} sendmail smart host & procmail recipes
>
>
> I'm puzzled about this - my understanding is that procmail is an
> lda so its
> filtration of messages takes place after they have arrived at
> your box. Now
> AFAIR you want to reject messages over a certain size for
> bandwidth reasons.
> Am I correct in my memory ? If that is the case, then using
> procmail on your
> local machine to reject messages over a certain size is pointless because
> they've already arrived on your machine - you'd need to use
> procmail on the
> server from which you receive your mail. Dave Wilson also mentioned using
>
> O MaxMessageSize=<number>
>
> in your sendmail.cf but the flaw in this is that not all sending servers
> will send the message size before the message and you may be sure that
> spammers or 'doze worms running their own little SMTP servers certainly
> won't.
>
<snip>