On Tue, Mar 19, 2002 at 05:14:20PM -0800, Clint Olsen wrote:
> I'm on one of these connections via cable modem that's limited to 128K bps
> outbound. When I send a mail to lots of recipients, Postfix goes "hog
> wild" with parallel transfers, sopping up all of my usable bandwidth. Is
> there a way to limit the number of concurrent transfers at once?

You might be after (from sample-smtp.cf) ;

# The smtp_destination_concurrency_limit parameter limits the number
# of parallel deliveries to the same destination via the smtp delivery
# agent.
#
# The default limit is the default_destination_concurrency_limit
# parameter. It is probably safer to limit the concurrency to 10.
#
smtp_destination_concurrency_limit = 10

... but perhaps something more.

Cheers,

-- 
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