Timo Sirainen wrote:
On Sep 22, 2009, at 9:08 PM, Leonardo Rodrigues wrote:
is there anything that can be easily used to automatically compress IMAP traffic between client and server ? I was thinking if the SSL/TLS code enables some kind of compression as well.
If your OpenSSL supports it, Dovecot supports it. I recently tested this with gnutls-cli program, openssl s_client for some reason didn't support it. I've no idea if any actual IMAP clients support it.
I think this kind of feature is potentially more interesting than people give it credit. Timo, would it be possible to get some additional debugging on the SSL connection creation so that we can see if compression was enabled? Packet tracing is all well and good, but can be complicated for a non local production server, etc (mine are also virtualised machines which also increases the difficulty of packet tracing correctly)
It's not really clear why openssl isn't supporting this correctly, but I think there is a quite a large performance boost to be had on even decently fast broadband connections if this could suddenly start working across a wide range of clients...
I would be interested to hear if anyone found there a solution to why openssl isn't enabling this compression?
All the best
Ed W