MBOX-Line: From tss at iki.fi  Tue Mar 20 16:07:09 2012
To: imap-protocol@u.washington.edu
From: Timo Sirainen <tss@iki.fi>
Date: Fri Jun  8 12:34:48 2018
Subject: [Imap-protocol] [ann] lua imap server
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Message-ID: <5EC476DF-A92A-424F-97D9-0A3905F35B80@iki.fi>

On 21.3.2012, at 0.06, Brandon Long wrote:

> We've seen some clients which will always request information about the last message in the folder if you give the same EXISTS.  We issue duplicate EXISTS every N minutes on IDLE as a keepalive for the connection (to keep various NATs from closing the connection), but we only have to deal with the small number of extra FETCHes every N minutes.  (we tried to use an untagged * XKEEPALIVE response, but some clients hang-up when they get an untagged response they don't understand).

Dovecot sends:

* OK Still here..

I've never heard of any complaints with it (other than some mobile users wanting to disable it to save battery life). I think UW-IMAP sends the same.


