Road to Microsoft 365

Microsoft 365 Project Update

Updated August 6, 2025 @ 2:52 PM

EXCHANGE ONLINE - UPDATES

Migration from Exchange on premise to Exchange online is 100% complete.
Web mail can now be accessed at mail.ttuhsc.edu

FUNCTIONAL MAILBOXES/DISTRIBUTION LIST

All mailboxes and list have been moved online and owners can resume managing access to those mailboxes.
Encrypted emails can NO LONGER be sent to distribution list. Sending directly to a distribution list is unsupported, because Microsoft cannot verify intended recipients.
- To send encrypted emails they need to be sent directly to the named users in the distribution list.

New Email Security

KNOW YOUR EMAILS ARE BEING RECEIVED

August 2025

All emails between our institutions are now routed through new anti-spam and anti-phishing services. While this improves our security, some legitimate messages may be incorrectly flagged as spam. To ensure you don't miss important emails, we recommend:

Ask your frequent collaborators at TTU to add your email to their whitelist to ensure appropriate delivery.
Check your Spam Digest email daily to ensure that legitimate email from TTU has not been incorrectly flagged. You can release email, “allow sender” and other actions via the Spam Digest.
If you feel your email to a TTU recipient has not been received, please call that individual to ask them to check their spam folders.

For instructions/information login to IT Solutions Knowledge Base.

Setup Exchange Online

To get your TTUHSC Exchange Online account set up, you'll need to follow a few steps, which may vary slightly depending on whether you're using a web browser or a mobile device.

Before You Begin, you need to have a few things ready:

Your full TTUHSC email address (e.g., your_username@ttuhsc.edu)
Your eRaider username and password
The Microsoft Authenticator app downloaded on your mobile device (this is a security requirement for multi-factor authentication, or MFA)

Login to IT Solutions Knowledge Base for detailed instructions.