On Wed, Sep 26, 2001 at 09:46:09PM +0200, mlambrosa.it spewed 6.0K bytes in 162 lines about:
: Title: the best mode to deliver 1.000.000 email messages (recipient are ALL
: different and email are ALL different) in few hours during a single delivery
: session.

        <snip>

The company I work for does this today. We're not a spammer, but we
mail our registered users all sorts of stuff. The largest gain we get
is from having the servers being dual-attached to a fibre storage
network which hooks into an EMC 3930 array. We have quad ultrasparc2 sun
servers, running sol7 64bit. Veritas helps out in that it is
journaling, but the real speed gain comes from the fast disk. According
to vxstat, our average write/read time is about 8ms.

Sending personalized mail to multiple lists of 300k users creates huge queue
directories. Tests show that we can get about 350k/hr/server through to a
remote host, assuming the remote host accepts on the first connect, and
has as fast a connection as us. In the real world, we're getting about
220k/hr/server through. We're also mailing 15kb files to each person.

Mailing server to server on the same network (100mb switched, full
duplex) shows that we can theoretically do about 1.5million
messages/hr/server. The real internet is far slower.
 
your mileage may vary.

-- 
|  Andy   |     e-mail      |      web       | gpg/pgp keyid |
|         | andylewman.com | www.lewman.com |   ED788962    |
Republicans consume three-fourths of the rutabaga produced in this
country.  The remainder is thrown out.
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