
Merging multiple email accounts in Outlook can be a straightforward process, especially when you know the right steps to take. You can merge up to 25 accounts, including POP3, IMAP, and Exchange accounts.
If you're using Outlook 2019 or later, you can use the "Connect to a different email account" feature to add and merge accounts. This feature allows you to link multiple email accounts under a single profile, making it easier to manage your emails.
To merge accounts, you'll need to create a new profile in Outlook and then add each email account to the new profile. This will allow you to access all your emails in one place.
Readers also liked: Save Outlook Emails to Onedrive Automatically
Why Merge Email Accounts
Merging email accounts in Outlook can greatly improve your workflow and productivity. By combining multiple email accounts into one, you can save time and simplify email organization.
Managing multiple email accounts separately can be both inefficient and time-consuming. Merging them into one saves time and simplifies the workflow.
Having multiple email accounts can lead to wasted time switching between them. Consolidating them into one leads to better efficiency and a smooth, productive experience.
You might need to combine Office 365 accounts in the following scenarios: company mergers or acquisitions, consolidating personal and work accounts, cleaning up duplicate user accounts, or centralizing data for compliance or security reasons.
Combining email accounts simplifies email organization with the use of filters, folders, and labels. This makes it easier to manage your emails and find what you need quickly.
Here are some common reasons to merge email accounts:
- Company mergers or acquisitions (Office 365 tenant to tenant migration)
- Consolidating personal and work accounts
- Cleaning up duplicate user accounts
- Centralising data for compliance or security reasons
Team members working on a shared project and having a shared mailbox improve coordination and enhance team collaboration and better teamwork.
How to Merge Email Accounts
Merging email accounts in Outlook can be a straightforward process if you know the right steps to follow. You can merge multiple email accounts into one inbox using various tools and software.
To merge Outlook accounts, you can use a tool that offers simple working steps to combine Outlook inboxes of multiple accounts. This tool allows you to add the entire folder containing the files you want to merge and offers two options to combine Outlook.pst files into one file.
The tool also enables you to merge all Outlook folders with a single click of the "Merge All Folders" button. Additionally, you can remove duplicates from the merged PST files by selecting the desired item from the Mail, Contacts, Calendar, Notes, Tasks, and Calendar lists.
To remove duplicate emails from Outlook, you can select the email fields such as Subject, Message Body, Recipient, Sender, Cc, Bcc, Attachments, Sender Name, Email ID, and Sent Date. This will help you to merge two Outlook accounts without any issues.
Here's a step-by-step guide to merge Outlook accounts using the tool:
- Click Add Files or Add Folder to add the entire folder containing the files you want to merge.
- This software offers you two options to combine Outlook.pst files into one file, which is Merge or Join to merge Two Outlook Accounts.
- Now click the “Merge All Folders” button to merge all Outlook folders.
- Click the “Change” button and find the folder to save the merged PST files.
- Select the Ignore Duplicate Items check box, and then select Specify Conditions.
- Finally, click “Next” to merge Outlook.pst files in one process.
Alternatively, you can use the Quick Steps to Combine Office 365 Accounts feature, which allows you to select the data category and leverage a Date Filter option if required. You can also access the source account data by providing the Admin Email & Application ID and validating them.
To access the source account data, you'll need to provide the Admin Email & Application ID and validate them. Similarly, enter the credentials in the destination window.
Here are the steps to combine Office 365 accounts:
- Step 1. On the first screen, you’ll see two Microsoft 365 options; click on both of them.
- Step 2. Now, select the data category, and leverage a Date Filter option if required.
- Step 3. To access the source account data, provide the Admin Email & Application ID, and validate them. Similarly, enter the credentials in the destination window.
- Step 4. For processing source account users, use either the Fetch Users, Import Users, or Download Template options.
- Step 5. Hit the Start Migration button.
Automation vs Manual Methods
Automation is a game-changer when it comes to merging email accounts in Outlook, as it saves you from the hassle of manual configurations and reduces errors.
Advik Software offers several advantages over manual methods, including the ability to fetch configured Outlook profiles, multiple folder support, and bulk conversion of multiple accounts and folders in one go.
Manual methods can work, but they have significant limitations, especially when you need to merge several accounts or maintain folder structures. They require repeated configurations and can be error-prone.
Here are some key differences between automation and manual methods:
Automation tools like Advik Outlook PST Converter can simplify the process of merging email accounts in Outlook, making it easier to manage multiple accounts and folders in one place.
Using Specialized Software
The PST Merge Tool is a comprehensive software that combines multiple Outlook PST files into a single file.
It allows you to merge various mailbox items, such as emails, contacts, and calendars, while preserving the folder structure.
You can merge data based on a specific date range, giving you more control over the merging process.
The software also removes duplicate emails, which can be a real time-saver.
You can exclude attachments if needed, which is a useful feature if you're dealing with large files.
It offers the option to password-protect the new merged PST file, adding an extra layer of security.
The software provides a range of options to suit your needs, making it a valuable tool for anyone merging email accounts in Outlook.
Curious to learn more? Check out: Backup Emails Outlook Web
Manual Methods
Merging email accounts in Outlook can be a bit of a challenge, but don't worry, I've got you covered. There are two manual methods to merge email accounts, and I'll walk you through them.
You can use the PST import/export method, which involves exporting your old email account to a PST file and then importing it into your new Outlook account. This method is a bit complicated, with multiple steps that require both time and effort.
Here are the steps to export your old email account to a PST file:
- Open MS Outlook on your PC.
- Then, head to File > Open & Export > Import/Export.
- Now, choose Export to a file > Next.
- Select Outlook Data File (.pst) and then click Next.
- Choose the old email account or folder that you want to export to a PST File.
- Click Next and select a location to save your file.
- Hit Finish.
Keep in mind that this method involves multiple complicated steps and can result in duplicate emails, contacts, and calendar events if you don't use the option "Do not import duplicates".
Method 2: Year Ranges
In Method 2, you'll be combining email accounts in Outlook 2016 or 2010 using the IMAP protocol. To start, open Outlook and select an account from the left sidebar, then right-click on it.
You'll need to create a new folder for merging the email accounts. To do this, go to the Home menu and select New Folder. In the Create New Folder wizard, enter an appropriate name and click OK.
Additional reading: Emailing a Folder in Outlook

The next step is to set up a rule to move emails from one account to the newly created folder. To do this, go to the Rules and Alerts window and choose an account. Then, click on New Rule and select Apply rule on messages I receive.
In the Rules wizard, you'll need to specify the account you want to apply the rule to. You can do this by enabling the checkbox corresponding to the specified account. This will display an Account dialog box where you can choose the required account.
To move emails to the specified folder, you'll need to select the option to move it to the specified folder. This will prompt an alert wizard where you can choose the inbox folder you want to use.
You might enjoy: Moving Personal Emails and Stored Files Linked to Email Accounts
Manually
You can manually merge email accounts in Outlook using the PST import/export method. This method involves exporting emails from your old account to a PST file and then importing that file into your new Outlook account.

To export your old email account to a PST file, you'll need to follow these steps: open MS Outlook, go to File > Open & Export > Import/Export, choose Export to a file, select Outlook Data File (.pst), choose the old email account or folder, and select a location to save your file.
Here are the detailed steps to export your old email account to a PST file:
- Open MS Outlook on your PC.
- Then, head to File > Open & Export > Import/Export.
- Now, choose Export to a file > Next.
- Select Outlook Data File (.pst) and then click Next.
- Choose the old email account or folder that you want to export to a PST File.
- Click Next and select a location to save your file.
- Hit Finish.
Once you've exported your old email account to a PST file, you can import that file into your new Outlook account. To do this, follow these steps: open MS Outlook, go to File > Open & Export > Import/Export, choose Import from another program or file, select Outlook Data File (.pst), find and select the exported PST file, and check "Include subfolders".
Here are the detailed steps to import your PST file into your new Outlook account:
- Follow the same steps till Step 1 (2).
- Choose Import from another program or file and click Next.
- Then, select Outlook Data File (.pst) > Next.
- Now, find and select the exported PST file. Then, click Next.
- Make sure to check “Include subfolders”.
- Select Import items into the same folder in: and then, choose your new email account.
- Lastly, click on the Finish button.
Keep in mind that this method involves multiple complicated steps that require both time and effort, and there can be chances of duplicate emails, contacts, and calendar events if you did not use the option “Do not import duplicates”. The folder structure can become disorganized during the export process.
Expert Solutions
Merging two Outlook accounts can be a complex process, but there's a simpler way. Expert solutions like PST Merge Software can resolve the issue without losing any data.
This advanced application can smoothly and quickly combine Outlook emails, contacts, tasks, notes, calendars, and journals. It's fully capable of merging archived Outlook PST files, password-protected files, and active and network data files with a 100% accuracy rate.
The software supports merging ANSI and UNICODE PST Files, offering two options for merging: join and Merge. Users can effectively merge Outlook PST files and remove duplicate emails, calendar notes, tasks, journals, and contacts.
With the PST Merge Tool, users can easily merge multiple email accounts in Outlook without losing a single bit of data. It's highly efficient to combine multiple Outlook data files with Emails, Contacts, Calendar, Task, etc.
This professional tool allows users to Merge Multiple Outlook PST File Into One, making it a convenient solution for those who need to merge multiple accounts.
Consider reading: Two-way Sync Google Calendar with Outlook Imap Email
Combining Multiple Inboxes into One
You can merge multiple email accounts in Outlook using the PST import/export method, MS Outlook, or a dedicated tool that automates the process.
To manually initiate the process, you can choose between these two methods. However, if the accounts are within the same tenant, it's easier to export mailbox data from one user to a PST via eDiscovery or Outlook and then import it into the other account's mailbox.
You'll need admin access to both Office 365 accounts, specifically Global Administrator rights on both the source and destination accounts, to perform the migration.
Some common data and services that can be moved between Office 365 accounts include emails and mailboxes, OneDrive files and folders, SharePoint sites, Teams chats, files, and channels, and calendars and contacts.
Broaden your view: How to Add Multiple Email Accounts in Outlook 365
Getting Started
To get started with merging your email accounts in Outlook, you'll need to decide which method to use. There are several tools and software available that can help you merge Outlook accounts, but they all work slightly differently.
First, you'll need to choose which accounts you want to merge. This can be done by downloading and running a tool, or by using the built-in features of Outlook.
Here are the general steps to follow:
- Download and run a tool, such as the one described in Example 2, which provides a step-by-step guide to merging PST files.
- Choose the accounts you want to merge by browsing and selecting the PST files you want to combine.
- Select the files or folders you want to merge and click on Merge PST.
- Choose the destination path and specify the destination folder to save the merged PST files.
Some tools, like the one described in Example 3, offer more advanced features, such as the ability to merge all folders at once or to remove duplicates.
Here's a summary of the steps to follow:
Keep in mind that you can't merge two Office 365 accounts natively, but you can manually migrate or transfer data between them using tools like Microsoft Outlook or IMAP migration.
Featured Images: pexels.com


