Frequently Asked Questions

How to find your folders in OWA/web

Catmail's OWA does not show all folders in the left side navigation pane by default.  If you are unable to find a folder that you know exists, follow these steps:

  1. In the left side navigation pane, click Folders to reveal your Inbox.
  2. Click More.
  3. Look for entries that have a small triangle to their left.  Clicking this triangle will expand the list of items under that entry.

Screen shot: How to find email folders in OWA

Shared resources and departmental mailboxes

Accessing a shared resource on Catmail

Substitute the shared/departmental mailbox address for the "" placeholder in the above URL and then use your own OHIO ID and password to log in.

How to import PST/OLM files into Catmail

If you have archived messages stored in PST or OLM files, you can import those into Catmail.

What is "Clutter?"

As of April 2015, Microsoft is rolling out a new email management feature called "Clutter" that is designed to make it easier to find important messages in your inbox.  Clutter uses "machine learning" to move lower priority messages out of your way and into a new Clutter folder.

Microsoft blog: De-clutter your inbox in Office 365

At the moment, this is an opt-in feature; however, Microsoft has told us that they plan to have it turned on by default in the future.  To enable or disable Clutter, log into OWA and find its entry under Mail Options:

Screen shot: Enable or disable Clutter in your OWA options

How to flag a message as "not Clutter"

If you find a message in your Clutter folder that should not be there, you can train Clutter by moving that message back into your inbox. There are several ways to do this:

  • Outlook or OWA
    • Drag the miscategorized message from your Clutter folder to your Inbox
  • OWA
    • Hover over the miscategorized message and click the "Move to inbox" icon, or highlight the message and click "Move to inbox" in the navigation bar:Screen shot: Telling OWA that a message is not Clutter

How often do I need to empty my Junk folder?

We recommend checking and emptying your Junk folder every 30 days. 

Deleted Items auto purge

On Catmail, Deleted Items older than 30 days are automatically purged.  Purged messages can still be recovered for an additional 14 days.

How to recover a deleted item

Deleted items can be recovered from Catmail's dumpster for an additional 14 days after being purged from your Deleted Items folder.  To recover deleted items:

  1. Log into your account using either OWA or Outlook.
  2. Right click your Deleted Items folder and choose Recover Deleted Items.
  3. Select the item or items you wish to recover.
  4. Click the Recover button.

Can't log in to Catmail

Email address as username

We recommend using your full email address instead of just your Ohio ID when signing into a Microsoft service like Catmail.

Safari on Mac OS

If you repeatedly get sent back to the login page when using Safari on Mac OS to access, try using a different browser like Chrome or Firefox.

Mac Mail & iCal sync problems

Most problems with Mac Mail or iCal not synchronizing with your Catmail account can be fixed by deleting and re-adding your account profile.

Message/attachment size limit

Maximum message size is 25 MB, including attachments.  If you try to send something larger, the message will be rejected.  If you are sending to someone outside the university, we recommend staying under 15 MB. If you need to send something larger than this, upload the file to Box or Filelocker and send your recipient a link to that file.

Restricted attachment file types

Catmail will not accept executable file types as an attachment.  This restriction also applies to executables stored inside zip files and other compressed archives.  If you need to share an executable file, use a cloud storage service like Filelocker or OneDrive.

Maximum recipients & messages per day

A single message may not have more than 500 recipients in the To, Cc and Bcc fields combined.  If you try to include more than 500 recipients, the message will be rejected.

If you send more than 10,000 messages in any 24 hour period, Microsoft will block your account from sending additional mail for 24 hours.  We do not have any way to override this block. You will need to wait for Microsoft to re-enable your access.  During a send block you still will be able to receive messages.

Mailing lists and distribution groups count as a single recipient as long as you do not click the "+" sign to expand the group into its individual members.  To learn more about mailing lists, visit our Mailman home page.

"Search Folders" feature requires Outlook

If you have any Search Folders configured for your account, you will need to use Outlook to access those folders.  Microsoft does not support Search Folders in OWA.

How to forward a message as an attachment

If the Service Desk or IT security office asks you to forward a message to, the best way to do so is as an attachment.

How to log out of OWA

Click your profile picture icon in the top right of the window and select Sign out. If you have not set a profile picture, the icon will be a stylized silhouette of a person.

To be sure that you are safely logged out, OIT recommends closing your browser completely, especially if you are in a computer lab or kiosk.

Screen shot: Avatar icon in OWA with drop down menu showing

Screen shot: Avatar icon in OWA with drop down menu showing (no profile picture)

How do I check my quota?

To see how much of your 50 GB quota you are using:

  1. Log into using a web browser.
  2. Click the gear icon in the upper right and choose Options.
  3. On the left side of Options, click the small triangle next to General to expand that section:
    Screen shot: OWA options with General and My Account highlighted
  4. Choose My Account and scroll down.
  5. Your quota information will be on the lower right:
    Screen shot: Quota status bar in OWA

Using your OHIO email address with other Microsoft services

If you use your OHIO email account to sign up for a Microsoft consumer service like XBox Live, please keep in mind that your password for services like XBox Live will not be synchronized with your OHIO password.  Also, if your OHIO account is ever disabled, you may lose the ability to reset the password on any personal Microsoft accounts tied to that email address.

Can I keep my Catmail account after I leave Ohio University?

STUDENTS & ALUMNI: If you graduate from the university, you may keep your Catmail account indefinitely. If you leave the university for another reason, your access may be terminated once you are no longer eligible to register for classes.

CURRENT EMPLOYEES: You will have access to your employee Catmail account as long as you are employed by the university.  Once you stop working for the university, your access will be disabled.  Exceptions include:

  • Adjuncts who only are under contract during portions of each year can arrange for access to persist between contracts.
  • Employees who also are taking classes have two separate Catmail accounts.  Their student account will be covered by the "students" policy.
  • Employees who are also alumni of the university will have both an employee account and an alumni account.  The alumni account will remain active regardless of employment status.
  • Retirees and Emeriti will retain access indefinitely.

RETIREES and EMERITI: You will have access to your Catmail account indefinitely.

SPONSORED GUESTS: You will have access as long as your sponsor approves your account.

Will the University sell my email address?

Ohio University does not sell email address lists; however, we are required by Ohio public records law to provide "directory" information to those who request it.  Students may choose to have directory information withheld by completing this form and submitting it to the Office of the University Registrar.

Our contract with Microsoft does not allow them to sell your address or information or to advertise their services to you.

How to change your name in Catmail


Catmail uses your official name from your student records. It will display your preferred name, if you have entered one through the My OHIO Student Center. If you have not provided a preferred name, it will display your legal name.

You can update your preferred name and/or pronoun in My OHIO Student Center. After logging in, click on the "Names" link in the Personal Information section. For more information, visit

To change your legal name, you will need to contact the Office of the University Registrar.  A legal name change requires an official document and/or court order verifying the correct information at the time the request is made. You can submit one of the following forms of validation in person, to the Office of the University Registrar, Chubb Hall:

  1. Valid passport (required for international students in non-immigrant status);
  2. Court action document;
  3. Divorce decree (the appropriate page of the decree);
  4. Marriage certificate;
  5. Valid driver's license and social security card (you must submit both and the names must match);
  6. Federal or state-issued identification card and a social security card (you must submit both and the names must match).

When only one word is provided for the legal name, the information will be stored in a system's last name field with the standardized designation of 'FNU' (first name unknown) stored in the first name field.

If you have additional questions about name changes, contact Registrar Services by email at, by phone at 740.593.4495, or in person on the first floor of Chubb Hall.


You can change your first name in Catmail by filling in the Preferred Name field in the University's HR database:

  1. Log into My Personal Information.
  2. Expand the My Personal Information folder and click Personal Information.
  3. In the Basic Details section, click Update.
  4. Choose Correct or complete the current details.
  5. Enter your preferred first name in the Preferred Name box and click Next.
  6. Continue to click Next until you reach the Personal Information: Review screen.  Make sure your Preferred Name is correct, and click Submit.

Changes will not be immediately visible in the Exchange GAL (Global Address List or address book), but will be refreshed automatically the following morning between 4:00 AM and 5:00 AM.

I have a question that isn't covered here

If you have a question that is not covered in this FAQ or in the other self-help resources available on the email home page, please contact the OIT Service Desk at 740-593-1222 or submit a request at