Mailbox Size Warning: Two (2) options to solve this issue

Dear Client,

Mailbox Size Warning:
You have exceeded your individual mail quota.
Because you are using IMAP as your email setting and not POP, your package that you choose, is running our of space.
There are two (2) options to solve this issue:
1. Upgrade to a bigger size space package - From R100.00 p/m (Limited space) to R300.00 p/m (Unlimited space)
2. Delete old emails from the server (not from your computer) - Please contact us for guidance on how to do this.

You will soon be unable to continue using emails, and you should take action as soon as possible to resolve them.
Please let us know which option you prefer before you run out of space.

Greetings