On Sat, 28 Apr 2001 13:25:46 -0400
Alan Clegg <email@example.com> wrote:
> My guess is that you deliver serially, opening a single (or
> perhaps 2-3 depending on queue-depth) connections to AOL at any
> given time. MailingLists.org opens up to 120 concurrent
> connections, thus kicking off AOL's filters. My understanding is
> that the 'limit' to kick off the filters is about 17 concurrent
> connections. At that point, your mail starts vanishing (no
> bounces, no error, just no delivery).
AOL is of course a black box as far as this sort of experimentation
is concerned. I also have the side benefit of not having been
(knowingly) bit by AOL's filters for my lists (I'm in the
ultra-pleasant position of AOL+HotMail+MSN representing less than 3%
of my scriber base). However, a little empirical experimentation
(which used to be more explicit) suggested that the limit is on RCT
TO count per envelope. There may also be a limit on parallelism,
but I haven't noticed that (I limit to a parallelism of 10 outbound
> MailingLists.org pumps out about 300,000 messages a day which is
> not really "high volume" in the global scope of things. I'm not
> doing stats on how many of those are AOL vs. anywhere else (yet).
I pump, at peak, around 1.1Million per day. About 1% of those are
to AOL. My envelope size is 5. So far it seems to work.
J C Lawrence firstname.lastname@example.org
--=| A man is as sane as he is dangerous to his environment |=--