I'm traveling in Europe at the moment, and for some reason in Outlook I can only receive email - I can't send it. I get this error message: "Authentication is required before sending [R0107005]" Error code is 17092. Webmail works.

The incoming and outgoing servers and ports are correct, and I have "Override default port" checked as TWC says to. But what's really weird is that for the incoming server, "override default port" keeps getting unchecked all by itself, and the port is grayed out though the port number is still visible. I go into Accounts and check that box, and the incoming server looks right again, but as soon as I leave Preferences, it goes out again. Yet even with the incoming server function doing this, I can receive mail. But the outgoing server maintains its settings, yet I can't send.

Of course, TWC blames Microsoft. But last year they changed their servers without telling anyone - or at least me. Don't know if this has anything to do with it, but it took me about four calls for them to discover why I didn't have email last year (the usual - four different answers from four different tech support people). Now they just say, "talk to Microsoft,"  I can use webmail, but prefer not to if possible. Any ideas about what's going on?