10 Aug
2009
10 Aug
'09
9:36 p.m.
On Sun, 09 Aug 2009 22:20:41 +0200 Andrzej Adam Filip andrzej.filip@gmail.com wrote:
Could you offer some suggestion how to fetch mailbox content over high RTT link (with negligible packet loss)?
Currently I use IMAP+IDLE *but* it fails to use full available bandwidth due to high RTT and "send command wait for response" nature of POP3 and IMAP4 protocols.
The entire purpose of the command tag in IMAP is to facilitate batching or concurrent commands. See RFC3501 section 5.5. It shouldn't be too difficult to batch requests for new messages, or even select all the new messages in one request for a single folder.
-- Ben Winslow rain@bluecherry.net