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[REBOL] Re: Send & mail-server problem

From: gscottjones:mchsi at: 7-Aug-2002 9:30

From: "Robert M. Muench" SJ> > If REBOL does not complain, then this suggests SJ> > that eXtremail is not sending the correct sequence.
> I will post this on the extremail ML and see what the author has to say > about it.
Hi, Robert, Shortly before I received your response, I downloaded the linux package onto my Windows machine, unpacked it, and searched the binary and found the phrase "250 Bye". Your efforts further confirm the suspicion. As a cross check, I double checked the RFC to be sure that 221 is the correct sign-off sequence, and it is. For the curious: ... and look for ... 3.9 Terminating Sessions and Connections
> > Alternatively, the scheme could be made a little smarter and > > look for errant servers and then check the alternative > > closing sequence. > > I don't know how many non-compliant servers there exist. Maybe this is a > good idea anyway.
Good point. I started hacking to find a way of detecting that the server software is a particular type, and the hack started to get very involved, so I am setting that aside for now.
> > Finally, if eXtremail is sending an incorrect sequence, I > > would suggest sending a correction suggestion to the source > > maintainer to be fixed in a future release. Just a thought, > > but obviously very few clients have complained thus far, or > > the (possible) error would already have been fixed! > > That's what I don't understand too. Are all those clients implemented > with very relaxed checks?
My *guess* is "yes" given that once the email data is sent, and the client receives a non-error condition, then maybe sending a "QUIT" without waiting for a return may not be a problem most of the time. It is curious, I admit, which was why I checked the RFC covering smtp. It is amazing that eXtremail would not have received an error report sooner. Will wonders never cease? --Scott Jones