[Imap-protocol] [ann] lua imap server

[Brandon Long]

On Tue, Mar 20, 2012 at 2:33 PM, PA <petite_abeille at mac.com> wrote:


>

> On Mar 20, 2012, at 10:27 AM, Dave Cridland wrote:

>

> > No, NOOP is a command that does nothing; an EXISTS response is not

> automatically generated - it can be generated during any command (or, for

> extra bonus points, not during any command), but only when there are new

> messages.

>

> Sure. Does it hurt though? If one send an EXISTS response even though the

> message count hasn't changed?

>


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).

Brandon
-- 
 Brandon Long <blong at google.com>
 Staff Engineer
 Gmail Delivery TLM
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