Understanding Email Account Types in Microsoft 365

Overview/Introduction

Microsoft 365 provides several types of email accounts and groups, each designed for a specific purpose. Choosing the wrong type can lead to missed messages, duplicated work, and confusion about who is responsible for responding. This article explains each type in plain language so Faculty, Staff, and Students can understand what they are and when to use them.

1. Regular (User) Mailbox

A regular mailbox is your personal email account — the one assigned to you when you join the university.

Best for: Your personal, day-to-day email communication — sending and receiving messages as yourself.

2. Shared Mailbox

A shared mailbox is a centralized inbox that multiple people can open, read, and send from. Everyone who has access sees the same inbox, the same sent items, and the full email history. It also provides a joint calendar for scheduling.

Best for: Teams that need to receive, coordinate, and respond to emails together — such as a help desk, advising office, academic department, or student organization.

How it works in Outlook: The shared mailbox appears as a separate folder in your Outlook navigation pane. You can reply as the shared address (e.g., "From: techsupport@ursinus.edu") so the recipient never sees your personal email.

💡 Students: If you lead a registered student organization and need a shared team inbox, a shared mailbox may be a great fit. Submit a request through the service portal.

3. Distribution List (Distribution Group)

A distribution list is simply a group of email addresses bundled under one name. When someone sends an email to the list, a copy is automatically forwarded to every member's personal inbox. There is no shared mailbox or shared sent folder — each person manages the message in their own inbox independently.

Best for: One-way announcements and broadcasts where no coordinated team response is needed.

How it works in Outlook: You send one internal email; every member gets a copy. If someone replies, it goes only to the original sender (or to the whole list, depending on settings) — there is no coordination or tracking of who responded.

💡 Students: Class-wide announcements or club newsletters are common uses of distribution lists.

4. Microsoft 365 Group (Modern Group)

A Microsoft 365 Group goes beyond email. It bundles a shared mailbox, shared calendar, SharePoint document library, Planner (task management), and OneNote notebook into one collaborative workspace.

Best for: Cross-functional project teams, committees, or academic cohorts that need email plus shared documents, calendars, and task tracking in one place.

💡 Faculty & Staff: If your committee already uses SharePoint and Teams, an M365 Group ties everything together under one address.

💡 Students: Group capstone projects or research teams that need shared files and a shared inbox benefit from this type.

5. Mail-Enabled Security Group

A security group controls who has access to specific resources (like SharePoint sites or file shares). A mail-enabled security group adds the ability to also receive email at a single address — functioning like a distribution list for messaging while also managing permissions.

Best for: Situations where you need to both control access to resources and send email to the same set of people. Typically managed by IT administrators.

6. Resource Mailbox (Room / Equipment)

A resource mailbox represents a physical space or piece of equipment. It is used for scheduling — not for sending or receiving regular email.

Best for: Booking meeting rooms, study rooms, labs, or shared equipment through Outlook's calendar.

💡 Students: When you book a study room or lab space through Outlook, you are using a resource mailbox.

Quick Comparison Chart

How to Request a New Mailbox or Group

Submit a service request through the IT Service Portal:

1. Navigate to requests.ursinus.edu
2. Select Email & Collaboration
3. Choose New Mailbox / Group Request
4. Provide:
   • Desired email address
   • Type of mailbox or group needed (see this article)
   • List of members and owners
   • Brief business or academic justification

FAQs

See Also