[Dovecot] performance problems with IMAPS

[Timo Sirainen]

On 11.5.2011, at 1.05, Timo Sirainen wrote:

> On 11.5.2011, at 0.58, Linda Walsh wrote:
> 
>> Using wireshark.   It **could** be the client, but it's hard to see the client doing
>> anything other sending doing a large scale 'save message' to the mailbox, but you're
>> right, it could be a fault of the client, considering how poorly TB is written. 
> 
> Difficult to say, but my guess: something else than Dovecot or TB. On the client side there are antivirus and firewall things that can make thing suck. In general Dovecot and TB can talk to each others several MB/sec.
> 
> Is your problem only with large attachments, or also with a lot of new small mails? (Meaning: the latency or the bandwidth?)

Also: your subject is about "imaps". DId you try without SSL? Does that make a difference?