I haven't used Cogeco mail for a few years, but in the past I used to get issues with sending mail using Cogeco's SMTP server when not connected to a cogeco internet connection. Not sure if this still causes problems or if you are connected to a wifi network with cogeco as the isp anyway..
That's odd you mention that about maybe having to be connected to a cogeco wifi connection for it to work properly...I read that somewhere on the net yesterday, but can't for the life of me understand why that would be the issue.
I'll try it again tonight when I get home as I have cogeco wifi there.
But until then does anyone else have any helpful tips or ideas or websites to check out...I've also gone on Apple support site to seek help.
Thanks everyone!