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Office 365 Email FAQ

A comprehensive set of questions and answers for the Office 365 email upgrade can be found below. If you don’t find the information you are seeking, please contact ITS Help Desk at extension 4357 or via email at


Learn more about the migration process and how it will affect your UTB email.

Accessing Your Email

Find out your options for accessing your UTB email once it is upgraded.

Some important things have changed with Office 365

You will be limited to sending email to 1500 people in a 24-hour period.
You will also be limited to entering more than 500 people in the recipient field at one time.

Details and work arounds can be found here:
Recipient and space limitations.

The maximum total size of an email message is limited to 25MB. The total size includes the message header, the message body and any file attachments.

Note: An email client may limit the size of an individual file attachment to a value much less than the message size limit. For example, in Outlook Web App, the maximum individual file attachment size is 10 MB.

Do I need to do anything to prepare for the email upgrade?

For the smoothest transition, it is recommended that you run Outlook 2011 for Mac OS X or Outlook 2007 or 2010 for Windows.

If you are running an older version of Outlook or Entourage, you are encouraged to contact the ITS Help Desk as soon as possible to request an upgrade. Upgrading your email client software prior to your email mailbox being upgraded will make the transition to the new system much easier.

What will I notice when my mailbox is migrated?

For the most part, the migration should be transparent. If you are a Windows Outlook user, when your migration is complete, a message will display notifying you to close and restart Outlook.

If you are a Mac Outlook user, when your migration is complete, a message will display asking you to allow the “” to update your settings. Click “allow,” and then restart Outlook.

What is the timeline for migration?

The first groups of test users were migrated during the month of July and the rest of the campus will be migrated between July and August.  Mailboxes are being moved every evening.

How are the mailboxes being moved to the cloud?

The migration of mailboxes is happening every evening.  An email will be sent to users before their mailbox is migrated with instructions on what to do once the migration happens.

What about email accounts shared by multiple users?

Departmental email accounts should be moved when your group moves. If the mailbox is not moved with your group, contact the ITS Help Desk,, with the name of mailbox. 

Will I be able to view shared calendars once I am migrated?

Once you are migrated to Office 365, you are not able to view any shared calendars of users who have not been migrated. And, conversely, those who have not been migrated cannot view shared calendars of those who have. Once the migration is complete, all shared calendars will be available again. In the interim, you may need to use an alternate calendar or scheduling system. Thank you for your patience.

What will I have to do to access my email from my mobile device?

We anticipate mobile devices may need to be reconfigured to connect to your new mailbox location. Below are links to PDFs that will step you through configuring your device:

If your device is not listed above, please visit the Mobile Phone page at for information on how to redirect your specific mobile device.

After going through the setup instructions that are available online, some users may experience problems accessing email and calendar info. We suggest that it might be easier to delete the old email account and add a new email account using the setup instructions.

Will I still be able to access my email using webmail?

After your mailbox has migrated, your webmail experience will be enhanced to include increased functionality across most all web browsers.  The direct link is


Getting Help

What are my primary Help options?

Online Help: Review the UTB E-mail upgrade web page.

Walk-in Help: ITS Help Desk, located on the second floor of the Oliveira Library​, is ready to assist with trained IT staff. You may bring in your laptop or mobile device and no appointment is necessary.

Remote Help: If you’re having trouble with your desktop, call the ITS Help Desk support number at 956-882-4357. With your permission, we will be able to connect to your desktop and help resolve your issue.

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