[Dovecot] More effective mailbox fetching over high RTT link

[Ed W]

Andrzej Adam Filip 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.
>
>   

Is this a satellite phone question?

I build a bunch of products to help with this, but for a fairly 
specialist market.  You can probably contact me offlist via this email 
address or any of them on the website below?

    http://www.mailasail.com

However, we use lots of compression, pipelining and some predictive 
fetches to wring every bit of performance out of a 2.4Kbit connection 
with 1.5s+ latency

Good luck

Ed W