Re: [Exim] Long delays for MX DNS lookups?

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Szerző: Dan Egli
Dátum:  
Címzett: exim-users
Tárgy: Re: [Exim] Long delays for MX DNS lookups?
I never have more than a 2-3 second lookup for MX records from Exim, and
thats on a 350Mhz K6-2 chip running Linux :> Yes I have bind on the system,
but I also have a slowdown in that my connection is only 56k
----- Original Message -----
From: "Richard Welty" <rwelty@???>
To: <exim-users@???>
Sent: Thursday, August 30, 2001 1:25 PM
Subject: Re: [Exim] Long delays for MX DNS lookups?


On Thu, 30 Aug 2001 13:24:50 -0400, Greg Ward
<gward@???> wrote:
>Are his assertions true? Ie., does Exim perform all 1600 MX DNS lookups
>before starting to deliver mail? Can 1600 MX DNS lookups cause a 20 min
>delay? (That seems possible if 1) our DNS cache [we use dnscache on
>localhost] is not much help, and 2) Exim does all the MX DNS lookup
>sequentially.)


hmmm. i don't have delays anything like this, for comparably sized
lists, on my linux server.

i do have bind running on the same box, which is generally a big win.

richard

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