Problems with resuming lost connections

Eugene Crosser (
Tue, 16 Feb 1999 10:27:22 +0200 (SAT)

This is a repeat of a question that I asked a couple of months ago --
unfortunately I did not receive any replies at the time. I will do my
best to be very explicit about the problem! I operate MANGO in Zimbabwe
using ifmail 2.13 on a machine running RedHat 5.0.

A user is often unable to resume where they left off after losing
the connection in the middle of a poll delivering a file to the server.

Assume a user starts to send a file to the host and loses their
connection. The incomplete file sits on the host as say
(inbound)/tmp/report.doc. When they poll the second time, instead of
resuming from the end of the incomplete report.doc, the incoming file is
resent from the beginning but gets renamed to report.dod, which of course
then does not match the file specified in the file attach message, so then
the file is not delivered to the intended recipient.

Is there any way to ensure that the partial file (inbound)/tmp/report.doc
is completed instead of having a new file started?

The problem also arises when users send large mail packets that are not
completed. The next time they poll the mail packet starts from the
beginning but gets renamed to say 12345678.pku, so then cannot be
processed as it is not recognised as a mail packet.


Jim Holland
MANGO System Administrator
Harare, Zimbabwe