John Saylor wrote:
>
> Hi
>
> I've been using postfix to deliver bulk mail, and it's doing better than
> Exchange [which is saying virtually *nothing*, I know ...], but I think
> it can do much better.
>
> Right now it's on some pretty limited hardware:
> 64MB RAM
> 200 MHz Pentium
> Linux 2.2.16
>
> I changed these settings from their defaults, and while I had some
> better luck, it was not the leap I was hoping for.
> > inital_destination_concurrency = 2
> > default_destination_concurrency_limit = 8
> > default_process_limit = 64
> > queue_run_delay = 8192
> > maximal_queue_lifetime = 2
> > minimal_backoff_time = 2048
> > maximal_backoff_time = 8192
> > qmgr_message_recipient_limit = 2048
>
> What I'm looking for is suggestions on what config variables to tweak to
> improve performace; or will better hardware be the best next step. And
> any suggestions on hardware specs would be welcome.
>

I hav a question regarding sending of bulk-email. A client of mine has a
large userbase (70K + users) that sometimes get sent (solicited) bulk
email.

I believe there is a header called someting like 'X-Priority: bulk'.
How does this work ? Is it something that Postfix use ?

On the same note the clients bulksending application is a Perl program
that pipes the email to /usr/sbin/sendmail for each recipient. I don't
have any benchmarks but it seems to be working very slowly. What is the
best way of sending the same e-mail to a large bunch of users ?

Regards,

Arne K. Haaje

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