Thanks Wietse, works just fine.
On Tue, Aug 24, 2010 at 10:12 AM, Wietse Venema <wie...@porcupine.org> wrote: > Pablo Garcia Melga: >> I added the following lines to the configuration >> >> master.cf >> >> smtpslow unix - - n - - smtp >> >> transport >> >> yahoo.com smtpslow: >> yahoo.com.ar smtpslow: >> yahoo.com.mx smtpslow: >> ymail.com smtpslow: >> >> main.cf >> >> transport_maps = hash:/etc/postfix/transport >> >> smtpslow_destination_concurrency_limit = 10 >> smtpslow_destination_recipient_limit = 5 >> >> ran postmap transport and restarted the postfix service > > Your configuration works exactly as documented: it sends mail as > fast as possible while limiting the CONCURRENCY to 10 parallel > connections. > > If you want to limit the sending RATE, then you must (surprise) > use the Postfix features that limit the sending RATE. > > http://www.postfix.org/postconf.5.html#transport_destination_rate_delay > > Wietse >