On Wed, 6 Mar 2002 14:53:52 -0500 (Eastern Standard Time) Alan G Isaac 
<[EMAIL PROTECTED]> wrote:

AGI> 
AGI> > On Mon, 4 Mar 2002  Alan G Isaac <[EMAIL PROTECTED]> wrote:
AGI> >> I have been having trouble sending largish files with Mahogany
AGI> >> (say, half a meg or more).
AGI> >> Here is the error log:
AGI> >>  12:59:56: SMTP error: 421 SMTP connection went away!
AGI> >>  12:59:56: Cannot send message �Re: Fwd: comments on ch. 1�.
AGI> 
AGI> 
AGI> On Tue, 5 Mar 2002 07:44:39 +0100 Xavier Nodet <[EMAIL PROTECTED]> wrote:
AGI> > If you are using a modem, you can try setting a higher timeout
AGI> > on write. This used to work for me.
AGI> 
AGI> 
AGI> OK I'll try this, but what am I doing?
AGI> I do not know what any of these timeout setting mean.
AGI> Time out on write was alread set to 90 seconds: I cannot
AGI> imagine the SMTP connection was dropped for that long??

My understanding of this timeout value, from a practical
point of view, is that the 'write action' must be finished
before the timeout expires, or the connexion will be dropped.

As there is no acknowledge from the SMTP server while the
message is being sent, but only at the end, there can be a
long time between server sending 'ok, start to write the
message' and 'ok I received the message'.

Please someone correct me if I'm wrong.

So it should always be larger than the time needed to send the
largest message.

-- 
Xavier Nodet



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