I am having the same problem. I use G-Mail to fetch my Verizon e-mail. I have had no problems until Feb 2. Now I get error messages that say: Authentication error.
Server returned error "Server error - Please try again later. [SYS/TEMP]". I have been able to send Verizon e-mail through the G-Mail program, I just cannot receive it. i have called Verizon support a couple of time, but they are of no help. I get different responses.
THANK YOU SOOOOO MUCH! I had this exact problem. Something was changed somewhere (on or about Feb 2nd!) (that I didn't change) and I couldn't access my email for at least a month! A smartphone is no use if I can't access my email! So thank you 10x over!