As I was about to send some PR's to update some FreeBSD ports I maintain.. I find out that Streamyx SMTP server is listed on spam cop, and therefore can't go through.
Great stuff. Maybe they should be less concerned with advertisements and sponsoring entertainment events, and actually fix their service problems instead!
Thankfully, Miguel Mendez has written a nice GTK based send-pr utility (sysutils/gtk-send-pr in ports) that makes it easy to use other SMTP servers, including those that require authentification.