[pmmail-list] Problem sending mail

Xav pmmail-list@blueprintsoftwareworks.com
Mon, 30 Jun 2003 22:32:57 +0100


On Sun, 29 Jun 2003 18:38:42 +0200, Robert Dahlem wrote:

>>Further testing indicates that the problem shows itself only on
>>messages with content over three lines long (or with attachments).   
>>There appears to be nothing special other than that.   Any ideas as 
>>to cause?
>
>Big packets are lost, definitely an MTU problem. You will have to 
>investigate which MTU is the maximum for your connection and how you can 
>reduce MTU for your driver.

I found a command line that tests the MTU size via ping.   The machine
passed the test for a working MTU of 1500.   So apart from getting the
chance to sniff what is actually being sent, I am still at a loss as to
the problem's real cause.    I hate 'puters :-)))

Regards,

Xav.
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