I checked that I can send through my ISP's SMTP without authentication and it is OK with my static IP, so authentication is not the issue here.
I specified the ISP SMTP in the additional e-mail panel and then tried sending mail from PINE and it said connection refused.
I then removed this setting and tried again, same thing.
Then I realized that the qmail service was not enabled, so I enabled it. Still the same thing!
I am totally lost here and would appreciate any help!
Thanks!