Reasons why sending with Exim can be slow?

2001-07-31 Thread Antti Tolamo


What are they? Above apply only while sending from local network.

It's not a hosts, problem and I don't run it from inetd. No other
service has similar problems. I even reinstalled exim again.

It's not fault on OS's on local computer(unless it affects only port 25) as
I have 98/2000 on same computer, and both of them have same problem with mail.

All networking otherwise works perfectly from LAN to email server. Exim.conf
is same as before, I even recopied from backups my old one to be sure.

I'm bit puzzled.

Antti


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Re: Reasons why sending with Exim can be slow?

2001-07-31 Thread Marcin Sochacki

On Wed, Aug 01, 2001 at 12:40:21AM +0300, Antti Tolamo wrote:
 
 What are they? Above apply only while sending from local network.
 
 It's not a hosts, problem and I don't run it from inetd. No other
 service has similar problems. I even reinstalled exim again.
 
 It's not fault on OS's on local computer(unless it affects only port 25) as
 I have 98/2000 on same computer, and both of them have same problem with mail.
 
 All networking otherwise works perfectly from LAN to email server. Exim.conf
 is same as before, I even recopied from backups my old one to be sure.

In 90% of such situations the problem was DNS (or lack of it).

1) Enable maximum logging in debugging where possible
   (exim, bind, ...).
2) Play with `host' and `dig' utilities to check whether DNS and
   reverse-DNS records for all hosts are present.
3) Try to telnet manually to port 25 and send some mail.
   Notice when the delay occurs.
4) Read logs.
5) Goto 1) :)

Wanted

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Re: Reasons why sending with Exim can be slow?

2001-07-31 Thread Bob Billson

On Wed, Aug 01, 2001 at 12:40:21AM +0300, Antti Tolamo wrote:
 All networking otherwise works perfectly from LAN to email server. Exim.conf
 is same as before, I even recopied from backups my old one to be sure.

Almost sounds like exim is trying to verify hostnames and IPs.  Is this what
you want to happen.  If so, came the machine properly reach a name server?

   bob
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Re: Reasons why sending with Exim can be slow?

2001-07-31 Thread Antti Tolamo

At 04:58 1.8.2001, you wrote:
On Wed, Aug 01, 2001 at 12:40:21AM +0300, Antti Tolamo wrote:
 All networking otherwise works perfectly from LAN to email server. Exim.conf
 is same as before, I even recopied from backups my old one to be sure.

Almost sounds like exim is trying to verify hostnames and IPs.  Is this what
you want to happen.  If so, came the machine properly reach a name server?

   bob


Yes it can. And like I said, all other networking(like web browsing) works perfectly
and mail sending works flawessly from server. Curiously, I went to sleep and during
night the whole problem disappereaded!

I rebooted windows computer before I started to ask about problem, tried two diffren
OS's, looked all settings linux server and just got perpexled. Has this something to 
do with conjuction of stars ??? 

But this is not first time similar has happened. By year of experience of stable 
potato, it seems
that about once a year networking connections mysteriously start to crawl and then 
revert back to
normal after a while. This time problem wasn't big. Last time all traffic started to 
crawl big time.

I have suspicion it has something to do with potato networking. First thought would be 
to find problems
in Windows. But somehow I've had some minor problems with from potato elsewhere too. I 
atleast remember
having some curious problems with potato network interface that conneects to 
internet(I use masq). Potato really stable to use, but I've got impression that 
sometimes it has some curious, minor problems with networking that go away after a 
while(or then I just have lot of problematic hardware). Or is it normal with servers?




 

Antti


My PGP public key: 
http://linux.tola.org/~chicken/antti_pgp.txt

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