Am 04.06.2011 06:03, schrieb Goutam Baul:
> 1) There could be an issue with the server performance as because these many
> numbers of mails will
> be pushed to the queue at the same time. This can, however, be addressed by
> tweaking the mail sending
> script carefully.
with 15.000 mails - how old is your server? :-)
years ago sent 250.000 (legal!) mails with phpmailer
do not bother you main-mailsystem and let postfix run
on the webserver on port 127.0.0.1 with you mail-system
as "realy_host" and the settings below should wait
one second after each mail you main-systems gets
a) your php-script can send burst
b) the webserver will queue
c) the queue on you main server will not get filled
consider a valid ptr/spf-entry for you webserver and
do not use "relay_host", so it will send the bulk-mails
by itself (the settings below are from our bulk-mailer)
and even if someone blacklists you it will not affect
the business-mails!
queue_run_delay = 240
maximal_queue_lifetime = 2d
bounce_queue_lifetime = 2d
minimal_backoff_time = 900
maximal_backoff_time = 5400
message_size_limit = 36700160
max_idle = 60
in_flow_delay = ${stress?2}${stress:0}s
smtp_destination_recipient_limit = 15
smtp_initial_destination_concurrency = 5
smtp_destination_concurrency_limit = 5
smtp_destination_concurrency_failed_cohort_limit = 5
smtp_destination_rate_delay = 1
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