What is the "Flag" option for an email message?

When you receive a large quantities of emails, it is hard to distinguish between the important emails and the less important emails

MercaTrade.com allows you to "Flag" an email so it stands out and reminds you that you need to reply or do a follow up to this email

To Flag an email, follow these instructions:

1. Click on "My Account"
2. Click on "My Messages"
3. Choose the email and tick the box next to it
4. Click on "Flag" (bottom of the page)
5. You can also "Flag" this email directly by clicking on the flag
6. A red flag will appear
7. To remove the "Flag" , click on the "Flag" and the red flag will dissapear