Re: Mass migration off of qmail because of lack of DSNs?

[Dave Sill]

"Sam" <[EMAIL PROTECTED]> wrote:
>
>When you have mailing lists that number in millions, you will usually have
>thousands of messages going to the same [domain].
>
>Using VERPs will require a thousand times as much bandwidth.  Each
>individual message will have to be transmitted separately, plus each bounce
>will be returned separately.

"A thousand times" is a huge overstatement. There's a limit to the
number of copies that can be sent with each copy of the message. I
think sendmail defaults to 20 and SMTP limits it to 100.

And. as someone else pointed out, that bandwidth penalty only applies
for messages sent to the same MX, which is typically only a fraction
of mail bandwidth, which is usually only a fraction of one's network
bandwidth.

-Dave