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1. In Thunderbird, Point to "Inbox" (or any other affected mailbox) and click the right mouse button.
2. Click "Properties"
3. Click the button that says, "Rebuild Index" (See picture below)

E-mail Quotas: 

Is there a limit/quota for how much e-mail I can store?

Answer:  Yes.  You have a 500MB limit to store on the imap server.  You will receive a warning by e-mail when you reach 80% of your quota.  If you reach your 500MB limit, YOU WILL NOT be able to RECEIVE or SEND e-mail.  You may check your quota by signing in to webmail.uci.edu or going to "My E-mail Options at NACS' website http://www.nacs.uci.edu/email/options/index.html

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• 1. You may delete e-mails no longer needed, or drag old e-mails down to your local folders.
  2. If you delete e-mails, be sure to empty the trash and compaq your mailbox to get the space back.
     1. To Empty Trash:
        1. Right Click on "Trash"  Click "Empty Trash"
     2. To Compaq Inbox:
        1. Right Click "Inbox"
        2. Click "Compact"
  3. You may re-check how much space you are using by going to: http://www.nacs.uci.edu/email/options/index.html.

Signatures:  How to create a Signature in Thunderbird

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