Hello, M.Lottmann <[email protected]> (Tue Mar 1 14:52:16 2011): (slightly reformatted by me) > We have a serious problem: > Following settings are specified in our configure file > >>> > smtp_accept_reserve = 20 > smtp_accept_max = 200 > smt_accept_queue is not specified > remote_max_parallel = 10 > > Our greatest internal MTA which is using our exim gaetway > as relay ...to check against viruses/SPAM,... > is collecting messages and sends them in time intervals > of 1min .... > If there are too much messages in 1 connection, mails will > be queued with information (...exim_mainlog) > > no immediate delivery: more than 10 messages received in one connection > > > The "10" has no connection to the remote_max_parallel parameter > (we had a n attempt with "50" to this parameter...the same message) > but where is the special "10". > Is it >>> smtp_accept_queue_per_connection (default 10) > > > With other words...I think ...it's good, that connections from > external will be restricted with such controling... > > But is there a possibility to configure...that the "10" > will be used if connections come from external ...but higher > or without limit if connections com from > special internal hosts... > > Has anybody alread used > smtp_accept_max_per_host > ??? > Can this option resolve our problems ??? How I can use the > $sender_host value to expand this option > ???
It depends… If you can configure your internal MTA to use more parallel connections instead of sending everything down the same connection, you'll end hitting these smtp_accept_max_* limits. Unfortunely none of these options is expandable and thus you can't use the $sender_host_address to obtain some value. The only expandable option is smtp_reserve_hosts. Here you could put your internal MTA in the smtp_reservce_hosts to achive the desired external/internal limits. OTOH I do not see any reason, why smtp_accept_queue_max should not be made expandable. The only reason could be, that this config setting gets evaluated sooner than Exim knows something about the sending host. -- Heiko :: dresden : linux : SCHLITTERMANN.de GPG Key 48D0359B : 3061 CFBF 2D88 F034 E8D2 7E92 EE4E AC98 48D0 359B
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