[Mailman-Users] big lists, big messages

[alex wetmore]

On Sun, 13 May 2001, J C Lawrence wrote:
> On Sun, 13 May 2001 16:16:44 -0700 (PDT)
> alex wetmore <alex at phred.org> wrote:
>
> > On Sun, 13 May 2001, J C Lawrence wrote:
> >> There's reason to keep the RCPT TO envelope reasonably small to
> >> prevent triggering some ISP's SPAM traps.  Specifically, this
> >> appears to be one of the filter points that AOL uses (and of
> >> course it then drops the caught mail silently without a bounce of
> >> warning).
>
> > Do you have any details on AOL's spam filters?  None of my AOL
> > readers have complained about missing email.  It looks like my
> > largest list has 60 digested and 55 regular AOL members, so I'm
> > guessing that their spam filter is set to a higher threshold than
> > that.
>
> They appear to be using a multi-valued metric for their spam
> detection -- and to change their metrics regularly.  See:
>
>   http://members.aol.com/adamkb/aol/mailfaq/dropped-mail.html#lists

It doesn't sound like it makes a huge difference if they are batched
up at once, or if they come very quickly on different messages.

"If a mailing list server sends too much mail in too short a time to a
number of AOL members, AOL will consider it questionable and delete
it."

alex