Can't send e-mails?
There's a very good reason...for that.
You have entered the 'details'......of your Internet Account wrongly. Bigpond uses ............mail.bigpond.com (FOR BOTH "SEND" AND "RECEIVE"!!!!)
Whoever you have as an ISP Provider........they will have something VERY SIMILAR....in context! (So, double-check .....with THEM, and GET them to run through the WHOLE E-mail Set-up (again)...with you!
WOW! Another crappy Alda-sold E-Machine.......with a dodgy Keyboard, no less!
Or, the simple FACT the "CAPS LOCK" key........is "ON", or even simpler, just STUCK.
It doesn't take a genius...to fix that problem, Der!!!!!