BlueM@il: Frequently Asked Questions


Many of our most common items, such as 'access DePaul email', 'access a resource mailbox', 'set permissions on a resource mailbox', or 'manage spam' can be found in their own detailed articles if you search on those specific terms. For other common questions that require a bit less detail, we have compiled the list below.


What is the maximum attachment file size I can send?

There is not a specific attachment size allowed. The limitation is actually for total message size. The maximum permitted message size is 35MB.  Message size is determined by combining attachment size, body size, and total number of recipients.  You may be able to send an attachment closer to 30MB if the body is short and you are only sending to one recipient. If you are sending to many recipients with a large amount of content, the attachment size allowed will be much smaller. If it is necessary to share a file larger than 35MB, or a smaller file with many recipients, it is recommended that you use one of the DePaul provided cloud storage services to share the file via link, such as OneDrive.


How can I adjust my settings in Outlook on the Web (OWA)?

Microsoft provides some guidance on how to change the look of your mailbox. This includes common settings, such as: turning on dark mode, turning off Focused Inbox, and turning off Conversation View.


How can I turn off Focused Inbox?

Focused Inbox is a feature Microsoft 365 email and is on by default. If you prefer to turn this feature off, Microsoft provides guidance on how to adjust the Focused Inbox for all recent versions of Outlook.


How can I unsubscribe from the daily briefing emails?

Briefing emails are on by default as part of Microsoft's 365 email service. You can manage your preferences for receiving these here: Manage daily Cortana Briefing


How can I remove the Action Items, Bing Map, or other add-in features from Outlook?

To adjust add-in features in Outlook, you must login to Outlook on the Web (OWA), no matter Outlook client you are using. You can find the process to disable/enable your add-ins here.


Where can I find common keyboard shortcuts for Outlook?

Microsoft provides several Keyboard shortcuts for Outlook.


What does [EXT] mean in an email's subject?

Any email that comes from outside of DePaul will have the text '[EXT]' added to the beginning of the subject line of the email. This change is intended to help DePaul employees better identify emails coming from senders outside of DePaul.


I made a change to my meeting and hit 'Send Updates' but my attendees did not get notified of the update. Why?

For meeting updates, the Send Updates function will notify users about location changes made at any time. However, it will only send updates for other changes, such as attachment adds or content changes, if the change is made within 15 min of the meeting start time.


Why don't I see my email signature?

Email signatures in Outlook do not synchronize across copies of Outlook Desktop and Outlook on the Web (OWA). There is a new version coming soon that will allow signatures across multiple clients. In the meantime:

Create a signature in Outlook Desktop

Create a signature in Outlook on the Web (OWA)


Why did I get an error that my message cannot be delivered for an address I know I have emailed before?

Outlook will store previously used addresses in your Outlook Auto-Complete list. This is the list of addresses that appear automatically when you start to type in the To field. Sometimes these saved addresses can become corrupted. To fix this, you will need to remove them from your auto-complete entries and select them anew from the Outlook Address Book. If the person you are emailing is external to DePaul, you may need to contact them using another means to verify their address has not changed.

Remove individual Auto-Complete entries:

  1. Open a new mail message
  2. Begin typing the name or email address you want to remove
  3. In the box that pops up click on the "X" to remove the address from Auto-Complete

Remove all Auto-Complete entries from Outlook:

  1. Click on File
  2. Select Options on the left
  3. In the new windows Select Mail on the left
  4. Scroll down on the right side to the Send messages section
  5. Click on the button for Empty Auto-Complete List
  6. Click Yes to empty your Auto-Complete list

Why are some of the messages that I'm sending using Outlook on the Web (OWA) getting marked as spam?

Information Services has been alerted to several potential causes:

Please be aware that some third-party applications may alter email messages that are sent via OWA without the your knowledge. This may lead to the message being rejected or being marked as spam by the recipient. If you are experiencing this issue, please try a different browser or disable any browser extensions that you may be using.