> This is an aspect I hadn't considered fully...I use bulk_mailer
> for delivery to sort the recipient list by domain, allowing, say,
> all messages destined for AOL or Netcom to be sent off in one
> SMTP transaction. For my moderate sized lists it's a big win, and
> I'd have to say it'd be a HUGE win for large lists where you're
> likely to have multiple subscribers at each domain.
Lyris does the same thing. Messages to the same domain are grouped
together and sent in many fewer SMTP sessions.
Actually, we had to do this, or risk crashing other people's SMTP
servers. Many people have sendmail badly configured, and opening up
100 simultaneous SMTP sessions to them would do bad things. At the
very least, it would block all other incoming mail while this was
happening. At worst, it could crash them. So, Lyris will open up to
10 simultaneous connections to a single host, and will serialize the
message sends into those connections.
jb
john@shelby.com, Shelby Group Ltd., http://www.shelby.com/
Follow-Ups:
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Re: Lyris
From: jeffw@smoe.org (Jeff Wasilko)
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