[Dovecot] Dovecot Version 1.2.12 Slow IMAP LIST Question

[Charles Marcus]

On 2010-10-11 12:56 PM, Dave Shanefelter wrote:
> From the inside, if I telnet into Dovecot IMAP and issue ? LIST ""
> "*" I get an instant list of my folders.
> 
> If I do the above from the outside, the LIST command slowly lists 10
> - 15 entries and stops, then pauses for what seems to be 30 seconds
> to a minute, then lists another 10 - 15 entries. After about 5
> minutes of this it finally times out.

<snip>

> Can anyone offer additional troubleshooting to help us track down
> this issue?

First thing to check is the firewall... CISCO's are notorious for
'fixing' things that ends up breaking things...

Next is to sniff the connection and see what is happening...

-- 

Best regards,

Charles