I spent about 2 hours on the phone with Verizon tech support yesterday, with a very nice and diligent support person. The 1st hour was spent getting the red light out on my Westell 6100 DSL modem. The next hour was spent trying to figure out why Thunderbird could suddenly not connect with either pop.verizon.net or smtp.verizon.net. He never could figure it out, and neither could the Thunderbird expert he referred me to. Everything was set up correctly as it had been for a long time, including the latest port settings. After they gave up, I tried letting Windows Live Mail set up a connection automatically, and amazingly it worked. What happened was it used the default settings: incoming.verizon.net on port 110, and outgoing.verizon.net on port 25 which I thought had been blocked a long time ago. I'm still set up that way and it's working fine, and the new "correct" settings still don't work. Can anyone explain this?