Back

6 Steps to Delegate Office 365 Mailbox Access Permissions

When managing an Office 365 or hybrid Exchange environment youll likely need to delegate Office 365 mailbox access to additional users at some point...

2 min read
Published on Apr 11, 2017
6 Steps to Delegate Office 365 Mailbox Access Permissions

When managing an Office 365 or hybrid Exchange environment, you’ll likely need to delegate Office 365 mailbox access to additional users at some point.

In certain situations, you could simply create an Office 365 shared mailbox to grant multiple users mailbox access. Many companies take this approach when setting up generic email addresses for the business or specific departments.

But other scenarios are not so straightforward. For instance, if an executive hires an assistant to manage his or her mailbox, the newcomer should not have full access to the Office 365 or hybrid Exchange account. Instead, you’ll want to configure access permissions to give that person limited access and functionality.

A number of other business scenarios will require you to delegate Office 365 mailbox access permissions. So what’s the easiest (and safest) way to set up these permissions?

Enable Office 365 Mailbox Sharing

The process of sharing a mailbox is known as delegating access permissions in Exchange. Whether you’re working in Office 365 or a hybrid Exchange environment, use these steps to delegate Office 365 mailbox permissions:

  1. Sign in to Office 365 Admin Center.

  2. Select Users > Active Users.

  3. Select the user that requires delegate access.

  4. Expand “Mail Settings.” mail settings office 365

  5. Find “Mailbox Permissions” and select Edit. mailbox permissions office 365

  6. Add or modify users as required. Once complete, select Save. edit Office 365 mailbox access permissions

Equipping users with shared mailbox access is one way to extend the ability to read and manage emails, send-as and send-on-behalf.

The steps above are primarily geared towards tier 2 system administrators using the GUI to make changes to your account. You can script all the steps in PowerShell to make bulk changes. 

Looking for more help automating or managing your Office 365 infrastructure?

Check out the resources below or reach out today to learn more about our Exchange consulting: Creating an Office 365 Mailbox in a Hybrid Configuration Deleting & Disabling Mailboxes in Exchange Hybrid 2013 & 2016

This post has matured and its content may no longer be relevant beyond historical reference. To see the most current information on a given topic, click on the associated category or tag.

Related Posts

Azure Migration vs AWS Migration Key Differences

Comparing Azure Migration and AWS Migration Key Differences in Cloud Strategy

Comparing Azure and AWS for cloud migration? Learn the key differences in pricing, security, tools, and performance to choose the right platform for your business.

Jun 18, 2025
8 min read
Benefits and Challenges of Azure Cloud Migration

Key Benefits and Challenges of Migrating to Microsoft Azure

Migrating to Microsoft Azure offers scalability and security, but it comes with challenges. Explore the key benefits and hurdles of Azure cloud migration.

Jun 17, 2025
10 min read
Who Needs to Comply with CMMC Regulations?

Who Needs to Follow DoD Cybersecurity Requirements for CMMC Compliance

CMMC regulations apply to defense contractors, subcontractors, and suppliers handling DoD information. Find out who must comply and what certification level is required.

Jun 17, 2025
6 min read
What’s the Real Cost of CMMC Compliance?

The Real Cost of CMMC: Catching Up on What You Were Already Supposed to Be Doing

CMMC isn’t introducing new rules, it’s enforcing what should already be in place. Learn what’s really driving the cost of CMMC compliance.

Jun 16, 2025
4 min read
How to Meet ITAR Compliance Requirements in Office 365

How to Meet ITAR Compliance Requirements in Office 365

Need to meet ITAR compliance in the Microsoft cloud? Learn why GCC High is required for Office 365, what the regulations demand, and how to secure export-controlled data.

Jun 12, 2025
6 min read
Are You Ready? Understanding CMMC Controls Prohibited from POA&Ms

Are You Ready? Understanding CMMC Controls Prohibited from POA&Ms

CMMC Level 2 requires full implementation of specific controls. Learn which ones cannot be deferred in a POA&M and how to prepare for assessment success.

Jun 11, 2025
7 min read

Ready to Secure and Defend Your Data
So Your Business Can Thrive?

Fill out the form to see how we can protect your data and help your business grow.

Loading...
Secure. Defend. Thrive.

Let's start a conversation

Discover more about Agile IT's range of services by reaching out.

Don't want to wait for us to get back to you?

Schedule a Free Consultation

Location

Agile IT Headquarters
4660 La Jolla Village Drive #100
San Diego, CA 92122

Secure. Defend. Thrive.

Don't want to wait for us to get back to you?

Discover more about Agile IT's range of services by reaching out

Schedule a Free Consultation