--As of April 15, 2008 6:15:54 AM -0500, Chris Bennett is alleged to have 
said:

> synproxy state was causing problem.
> I changed both to keep state
> and now works fine.
> Why does synproxy state cause mail failures?

--As for the rest, it is mine.

It was causing timeouts.  Synproxy works by noting the request for a 
connection, doing the connection setup itself, and _then_ replying to the 
request.  So that initial reply will take a while to get back.

Basically it slows down initial connection setup slightly, to do what it is 
meant to do.  Sendmail was noticing this, and not getting a full reply in 
the amount of time it was expecting.  Either removing the synproxy (like 
you've done) or increasing the time before Sendmail times out (I assume it 
can do that, it can do everything else...) would solve the problem.

Daniel T. Staal

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