Error with squirrelmail and boundcube

[Erris]

Hi, i get an error with squirrelmail it say's this.

Error connecting to IMAP server: localhost.
61 : Connection refused

Does anyone something ? i work with freebsd 6.2

kind regards

Erris

[quleek]

IMAP listen to port 143 (normal) and 993 (secure)
Why should it listen to port 61?