Plus addressing allows you to create additional email addresses on the fly, and is useful when you sign-up for mailing lists or online services. Email addresses created this way use your existing email address as the basis and don’t require any administrator intervention to use.
Plus addressing means any email sent to username+whateveryoulike@tsc.fl.edu is still sent to your username@tsc.fl.edu account. This means you can have a lot of variations on your email address to give out to different people, sites, or mailing lists.
You can create a rule to automatically filter messages sent to one of these variations, which can be helpful for managing mailing lists and site registrations.
Move messages sent to username+whateveryoulike@tsc.fl.edu to another folder
1. In Outlook select File > Manage Rules & Alerts to open the Rules and Alerts dialog box
2. On the Email Rules tab select New Rule…
3. On the Rules Wizard dialog box under Start from a blank rule select Apply rule on messages I receive then click Next
4. In the Step 1: Select condition(s) box select check box sent to people or public group
5. In the Step 2: Edit the rule description box,
a. Click on people or public group then in the To field enter username+whateveryoulike@tsc.fl.edu, then click OK
6. Click Next
7. In the Step 1: Select action(s) box select check box move it to the specified folder
8. In the Step 2: Edit the rule description box,
a. Click on specified folder, then create or select the folder you want the email to be moved to, Click OK
9. Click Finish
10. Click Apply
11. Click OK
Forward an item to username+whateveryoulike@tsc.fl.edu to another person/email address
1. In Outlook select File > Manage Rules & Alerts to open the Rules and Alerts dialog box
2. On the Email Rules tab select New Rule…
3. On the Rules Wizard dialog box under Start from a blank rule select Apply rule on messages I receive then click Next
4. In the Step 1: Select condition(s) box select check box sent to people or public group
5. In the Step 2: Edit the rule description box,
a. Click on people or public group then in the To field enter username+whateveryoulike@tsc.fl.edu, then click OK
6. Click Next
7. In the Step 1: Select action(s) box select check box forward it to people or public group
8. In the Step 2: Edit the rule description box,
a. Click on people or public group, then in the To field enter the email address(s), Click OK
9. Click Finish
10. Click Apply
11. Click OK
Auto reply on messages to username+whateveryoulike@tsc.fl.edu
1. In Outlook select File > Manage Rules & Alerts to open the Rules and Alerts dialog box
2. On the Email Rules tab select New Rule…
3. On the Rules Wizard dialog box under Start from a blank rule select Apply rule on messages I receive then click Next
4. In the Step 1: Select condition(s) box select check box to people or public group
5. In the Step 2: Edit the rule description box,
a. Click on people or public group then in the From field enter username+whateveryoulike@tsc.fl.edu, then click OK
6. Click Next
7. In the Step 1: Select action(s) box select check box have server reply using a specific message
8. In the Step 2: Edit the rule description box,
a. Click on a specific message, type in a subject and message then click Save & Close
9. Click Finish
10. Click Apply
11. Click OK
Delete Rule
You can delete a rule when it's no longer necessary.
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On the File tab, choose Manage Rules & Alerts.
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In the Rules and Alerts dialog box, on the E-mail Rules tab, choose the rule you want to delete.
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Choose Delete 
> OK.