[Exim] Problems with MX lookup ..

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Autor: Registry Tripnet AB
Datum:  
To: exim-users
Betreff: [Exim] Problems with MX lookup ..
Hello !

Anybody experienced this problem:

ns1# host -t mx inventor.se
inventor.se             MX      10 s21.i-net.nu


ns1# host -Z s21.i-net.nu
s21.i-net.nu.           0       IN      A       194.52.56.250
 !!! s21.i-net.nu A record has zero ttl


In /etc/exim.conf "receiver_verify" is true.

And now to the problem.

$ telnet localhost 25
Trying x.x.x.x...
Connected to localhost.
Escape character is '^]'.
220 localhost ESMTP Exim 3.12 #1 Mon, 19 Nov 2001 09:56:45 +0100
mail from: ph@???
250 <ph@???> is syntactically correct
rcpt to: info@???
250 <info@???> verified


The MX lookup of inventor.se took 1 minute and 20 seconds !
I only have this problem with hosts with TTL set to 0.

Could this be a bug or what ?

Regards
TRIPNET AB

Patrik Henningsson
____________________________________________________
Tripnet AB                Telefon:  +46 31 725 25 00
Box 5071                  Telefax:  +46 31 725 25 01
S-402 22  GOTEBORG        registry@???
SWEDEN                    http://www.tripnet.se