Sending mail from servers at work
I'm having trouble sending mail when I'm connected to the wireless network at work. I am very unfamiliar with networks and such so I haven't tried anything to remedy the problem. When I send an email, I get a message that says the server isn't available. I'm provided with a list of alternatives but I end up just selecting "Try Later". Any help with this is much appreciated.
MacBook Pro (13-inch Mid 2010), Mac OS X (10.7.5)