All faculty, staff and students are provided with a CougarNet/ Exchange email account. Students should receive an @cougarnet.uh.edu email account within 48 hours after being admitted.  

Faculty, staff, and students are also assigned a UH email alias. UH will use your email alias as official communication to send important university information such as emergency closings and information from your college or department.

Attachment limitations

The email size limit is 35 megabytes (MB) if sending outside of UIT exchange (anything that is not @central.uh.edu or @cougarnet.uh.edu). Internally (anything being sent to another @central.uh.edu or @cougarnet.uh.edu account) there is no size limit. This includes the entire email message consisting of the attachment, message body, header, and signature. If the attachment is too large, the sender will receive an error message stating that fact. As an IT best practice, other email service providers also limit the size (usually 20MB) of attachments sent and received it.

Checking email quota

Outlook Client:

1. Open Outlook.
2. Right-click on your mailbox folder (it will read "Mailbox - " for example: Mailbox - Cougar, Joe).
3. Choose Properties or Data File Properties for Mailbox - .
4. Click on the Folder Size button.
5. The total size is what is used for everything you have on the Exchange server. It also lists the size of each individual folder below the total size.

Microsoft 365 on the web: 

1. Click on the settings gear icon.
2. Select Account.
3. Select Storage.

Mailbox Features:

• 99 GB quota
• 35 MB message size limit including attachments