On Wed, 2006-06-07 at 02:09 -0400, Igor A. Nesterov wrote:
I can dig into it if somebody gives me an idea where and how. As of now nobody did. I have heard that people do not have sending delays. I am glad to hear that. But the reason of me posting to this list is that I have.
Unexplained network delays are often caused by incorrect or marginal DNS configuration / operation. Actually it's not so simple to completely test this because entries get cached everywhere. You might try dnstracer. Otherwise simply run ethereal and you'll know ;-) If you're not sure, please post the conversation up to the "DATA" command. Filter packets destined to/from your smtp server, port 25. Something like tethereal -n -i eth0 tcp port 25 and host 1.2.3.4
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