IMAP connection going to the wrong port

[Bernardo]

Hi,

Trying to connect to an IMAP server on the LAN, i've got this in ~/.gnus.el:

(setq gnus-secondary-select-methods
'((nnimap "LocalMail"
(nnimap-address "192.168.1.20")
(nnimap-stream network)
(nnimap-server-port "143"))
))

However the connection fails and Wireshark shows me the connection is
attempted on the right IP address but the wrong port - 993 and is
consequently rejected.

BTW Thunderbird client doesn't have problems connecting to the server.

Hope i'm not overlooking something obvious.

--
Thanks, Bernardo