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Outlook has a number of common issues that can be resolved in some simple troubleshooting steps. Try the things below before escalating to Help Desk if you'd like to resolve your issue quickly.

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Sending from another address

  • Start a new email

  • Click Options

  • Click From

    • If you don't see the From button, you may need to click the down-arrow to expand the options on your menu bar for it to appear.??

  • A new field will appear next to the send button called From

  • Click the new From button

  • Click Other email addresses

  • Type the address you wish to send from or click From to look it up in the address book

    • You will need to have permissions to send on behalf of the user / email address that you select.??

Troubleshooting:

Is Outlook the Issue? 

  • The very first thing to do is confirm if the problem is your Outlook software, or a problem with the email server. You can do this by checking your email in the Outlook Web App (OWA), which is a browser-based email client that most directly reflects what is in your email according to the email server. You can do that by going to https://outlook.office.com and signing in with your otc.edu email edu email address and password. If your email looks fine there, we know the problem is with Outlook and you should follow additional steps below regarding your particular issue. If the problem exists in the OWA, we know the problem is more likely with your mailbox on the server, and you should contact the Help Desk.

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  1. Check the bottom of the Outlook window. Is it asking for a password or does it say it's Disconnected?

  2. Click on Need Password or Disconnected

  3. You'll get a prompt asking for your username and password. Provide them.

  4. Check the Remember my Credentials box.

  5. Click OK

Note

If this does not resolve the issue, try resetting your Microsoft Credentials

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 and then restart Outlook.

If resetting your credentials doesn't resolve the issue, contact the Help Desk.

Outlook will not start or hangs at loading screen

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  1. Close all instances of Outlook in task manager

  2. Open a run box - right-click start button and click "Run"

  3. Type "Outlook.exe /safe" and hit enter Enter

  4. Click OK to choose the profile

  5. After Outlook opens, close and re-open normally

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  1. Close all instances of Outlook & Skype Teams in task manager

  2. Go to Mail in Control Panel

  3. Click Data Files

  4. Highlight the account and click "Open File Location…"

  5. Show file extensions

  6. Rename the OST to .old

  7. Reopen Outlook

Additional Troubleshooting

There is an additional step you can do to rule out your Outlook profile being corrupt as the source of the problem. You can create a new Outlook Profile to test. If the new profile works fine, you know your old profile was the problem. 

Note

Note:

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 Items such as

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client-side rules, autocomplete cache data, Outlook view settings, client-side font changes – anything that doesn’t show up in outlook.office.comreside in your Outlook profile. Creating a new one means you will need to configure these items as if you were setting up your email for the very first time.

  1. Close Outlook.

  2. Search for the Mail Control Panel item:

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  3. Click Show Profiles

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  4. Click Add

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  5. Give your new profile a name. This name is for your reference so you can name it whatever you want. 

  6. You will be prompted for Auto Account Setup. Click Next.

  7. After it sets up your email, click Finish.

  8. Under the radio button for Always use this profile, click the dropdown menu and select your new profile. 

  9. Click OK.

  10. Reopen Outlook. After it sets up your mailbox as if for the first time, see if the problem is resolved.

  11. (Optional) If it is not, you can always repeat steps 1-3, and then step 8 to set your profile back to your original named "Outlook".

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  1. Start a new e-mail

  2. Begin typing the address in the To field

  3. When the address appears in the autocomplete pop-up, click the X

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  4. Continue typing the complete address or look up the address in the address book.

  5. See more about Common Undeliverable Mail Errors or Undeliverable Errors using Send-As Another Mailbox

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Messages sent through our email server must be a total of 150mb or smaller. Please check your attachment sizes. You may want to save your files to a OneDrive folder and send a link instead

If you need additional help, please contact the Help Desk:

Or visit the IT Service Center in the Jared Family Atrium.

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Account lockout and login errors
Account lockout and login errors
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