[Dovecot] POP3 Slow

[Jakob Curdes]

> I did run a protocol analyzer trace on the TCP transaction, when the POP3
>
> clients were connecting and discovered a lot of Re-Transmissions and Duplicate
>
> ACK packets.
>   
Then the first thing I would do is check the network connection. Maybe 
you have a wrecked network card, switch port ot et cetera.
Try running another protocol, like FTP, over the same connection. If you 
get similar errors you can rule out dovecot.

JC