Re: Misc minor POP3 issues
John Gardiner Myers <jgm+@cmu.edu> Sat, 04 June 1994 04:55 UTC
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Date: Sat, 04 Jun 1994 00:53:28 -0400
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From: John Gardiner Myers <jgm+@cmu.edu>
To: POP3 IETF Mailing List <ietf-pop3+@andrew.cmu.edu>
Subject: Re: Misc minor POP3 issues
In-Reply-To: <19940603231837.AAA9697@rome.software.com>
References: <19940603231837.AAA9697@rome.software.com>
Beak: Is
Mike@Software.com (Michael D'Errico) writes: > This was one of the original messages sent out to this list. Sorry > about taking so long to respond to it. It's appropriate to deal with the bigger issues first. Now we're in the home stretch. > This is an issue related to the broken TCP connection argument we've > been having. I implement a timeout which defaults to 10 min. and is > configurable. If the server times out, it sends a "-ERR" message and > closes the connection. The UPDATE state is not entered, and no messages > are deleted. Does this seem like a reasonable thing to do? An autologout timer should certainly do the same thing with respect to the UPDATE state as a broken TCP connection. If we permit an autologout timer, we should specify a minimum value for it so clients can know how often to send NOOP keepalives. For comparison, the shortest permitted autologout timer in IMAP is 30 minutes. A potential problem: When the server times out, if it sends an "-ERR" message, a client may erroneously deduce that the error was caused by the next command it tries. I have seen a situation where a PC crashed while holding an open POP3 connection. The connection thus never got closed and the maildrop was left locked. An autologout timer would solve this problem. > Why not deprecate TOP and replace it with the HEAD command (for "headers") > which would just return the message headers? I think in this case it is easier to change the wording to match reality than vice versa. State that commands are 3 or 4 characters long and are possibly followed by one or more arguments. -- _.John G. Myers Internet: jgm+@CMU.EDU LoseNet: ...!seismo!ihnp4!wiscvm.wisc.edu!give!up
- Misc minor POP3 issues John Gardiner Myers
- Re: Misc minor POP3 issues Michael D'Errico
- Re: Misc minor POP3 issues Steve Dorner
- Re: Misc minor POP3 issues John Gardiner Myers
- Re: Misc minor POP3 issues Michael D'Errico