On Mon, 12 Apr 1999, Dave Sill wrote:
> "Fred Lindberg" <[EMAIL PROTECTED]> wrote:
> >
> >qmail will always be faster than sendmail [unless you send one message
> >to a large number of addresses on the same remote host].
>
> No, qmail will usually win here, too, because sendmail serializes.
> Sendmail only wins when the message is huge.
Actually, if you are unfortunate enough to have a list of addresses sorted
by the right side of the @, qmail can be a big loser here. This is
because it will completely overload many remote hosts if there are a bunch
of recipients. eg. concurrencyremote = 120, you have 200 users
@somedomain, qmail will sit there with 120 connections to somedomain's
mailserver open while they all crawl along because somedomain can't handle
120 connections at once.
qmail is great that way at inflicting remote DoS attacks against other
mailers.
