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SMTP 'From ' line TimeStamp



This is kinda a newbie question. Flames to /dev/null :)

I'm curious as to how qmail or SMTP in general handles the timestamp at
the top of the message header. I assumed that it just stamped the local
system time at the top upon time of arrival, but that doesn't seem to be
the case. As an example, I did the following and have yet to figure out
how the header timestamp was calculated. 

I changed the time on a Win 95 box to Sep 30 1 PM GMT-8 without resetting
the box. The destination mailbox was on a local system running qmail 1.01 that 
has the time set to Oct 1 12 AM GMT-5. The timestamp on a test message showed 
Oct 1 4 AM. How was this timestamp derived?

						-Kevin


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