[Dovecot] compressed IMAP traffic

[Timo Sirainen]

On Sep 29, 2009, at 6:33 AM, Leonardo Rodrigues wrote:

>   with ssl3 and tls1 i can connect and see the zlib compression  
> being enabled.

Interesting.

  - openssl s_client -ssl2 fails, because SSLv2 is disabled
  - openssl s_client doesn't enable compression
  - openssl s_client -tls1 or -ssl3 enables compression

So I guess if client is using SSLv23_client_method() instead of  
SSLv3_client_method() or TLSv1_client_method() it doesn't work. Also  
Thunderbird uses Network Security Services library instead of OpenSSL,  
so it might not support compression at all.