Hi Ali,
>I have a newsletter which has 75,000 receipents. whew!
Agreed, that is an awful lot for a first go..... We started at 30,000 odd
and have worked up to almost 100,000 last time, and we had troubles.
>What are the performance consequences when sending out mass emails? So with
>the enterprise version, which can handle 1000 threads at one time, I can
>process 1000 emails at exactly same time?
Yes, but can everything else handle it? Bandwidth, badmail processing etc....
>1) can send more than 1000 emails to be processed through one cfx_imsmail
>tag at one time?
Haven't tried that one, all of our are customised so we send a squillion
individual mails.
>2) what are the conseqences on the win nt machine in reagrds to CPU and
>memory preformance?
Grunty machine needed, we run dual cpu with 512 RAM, its not enuf.... You
should see a post server with 10,000 messages in its queue, its
horrendously busy.
>3) How does post server work when dealing with such large amounts of emails?
It bogs horrendously if there are too many bad emails in there. We filter
the database heavily before we start sending anything. Bad formats get
chopped completely, no MX get set to "send last". The post server will
spend a large amount of time just looping thru' bad emails, once you get
too many then there is less room in the queue to take good ones, etc.
>What other ramifications should I consider? Howie? Other IMS campatriots?
Bandwidth is the biggy. If you are sending Newsletters then they are
probably big, the last we sent was almost 100K, HTML and text versions and
that was with the images back on our servers, not included in the mail.
Work out what your pipe spare capacity is, then throttle the server to
match and don't dump the whole lot of mail in one go, feed it out in
dribbles or chunks as you feel best to keep the pipe fed. We run a
scheduled process for that.
--
Yours,
Kym
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