The only email service you can access from school or from the laptops is the DET email, based on Gmail. This is a filtered service provided by the government especially for students and teachers. Chances are your main email address is a blocked one, such as Gmail, Windows Live Mail or Yahoo Mail. You can still read your Gmail/Live/Yahoo emails from your DET inbox.
We’ll be setting up your main email in such a way that it forwards all your email to your DET email. It still gets filtered by the system. The process is similar for most emails, but I’ve used Gmail.
Log into your Gmail account and go to settings.

Click Forwarding and POP/IMAP.


Enter your DET email address and you are done! Now whatever is sent to your main address is forwarded on to your DET address.
Make sure you have a secure password on your DET email. You don’t want anyone reading emails from your main address!
UPDATE:
If you want to read your DET email from home, you can either log into the DET portal by going here and logging in as usual, or set up your school email to forward to your main address using the same method above (DET emails are based on Gmail, therefore it has most of the same features.)
what about reading school gmail (DET mail), from home on the little lappies?
You can read your DET emails anywhere by logging on to the student portal (google student portal) and click my email.
hey, here’s a trick to get on to non-DET gmail at school.
Just go to
https://mail.google.com/a
just as it is like that with the https and /a on the end.
This is because DET email uses the same servers as Gmail, very easy go get around.