As rwodyplace #13 says, a picture is worth a thousand words. Well I put in the exact same configuration for my gmail account and this is my picture in the Status window:
Camera Name   DCS-930L
Time & Date   
02 Jul 2015 7:50:27 P.M.
Firmware Version   1.12.03 (2015-02-03)
Agent Version   2.0.18-b61
MAC Address   F0 7D 68 08 B9 E0
IP Address   10.0.0.7
Subnet Mask   255.255.255.0
Default Gateway   10.0.0.138
Primary DNS   10.0.0.138
Secondary DNS   0.0.0.0
DDNS   Disable
UPnP Port Forwarding   Disable
     
FTP Server Test   No test conducted.
E-mail Test   Invalid username/password.
As others have said this is so frustrating. Can anyone give me any other ideas? Can I send from a Yahoo address to a gmail address, for example?