Overview: This guide covers manual ways to “export blocked senders list Office 365” along with their limitations. Also, how you can migrate Office 365 data into popular formats professionally.
Dealing with unknown messages is very risky when it comes to the protection of Microsoft 365 mailboxes. For that, users can use Outlook Blocked Senders, Microsoft Defender Tenant Allow/Block List, spam filter policy, & mail flow rule for blocking unwanted senders. You can do this either to your individual mailbox or to the organization ones.
Also Read: Save Office 365 Emails as PDF
What is Office 365 Blocked Senders List?
The list of blocked senders consists of those email addresses or domains which the user decides not to receive emails from. The software automatically moves the emails from such senders into the folder of junk emails.
In Microsoft 365, the list is separated for every user mailbox and therefore users need to maintain it for every user individually. This is not one list that works for the entire organization.
Reasons to Migrate Blocked Senders List from Office 365
There are various points to export blocked senders list from Office 365. Let’s read those points:
- The current email filtering option should probably be recorded before users transfer to a new tenant
- Administrators should have a record of mailbox-specific settings in addition to mailbox information
- If you look at blocked addresses as well as domains, then you will find old or unneeded entries
- Users want their previous email settings when they transfer to any new accounts
- Companies may need to make a note of their email filtering data
- Keeping important configuration data can help you regain the mailbox settings
Manual Methods to Export Blocked Senders List from Office 365
There are a total of two methods which you can follow in terms of migrating blocked senders list manually.
#1. “Export Blocked Senders List Office 365” Using Outlook App
It gives you an export option for its junk email lists, which allows you to get only the blocked senders of a certain Outlook Profile.
- Firstly, launch Outlook in your system
- Go to this address: Home > Junk > Junk Email Options
- Next, find the Blocked Senders tab and click on it
- After that, quickly review the listed addresses and domains
- Use the Export to File feature to export the list
- Now, save the exported file safely into your location
This method is effective only for a few Outlook profiles. On the other hand, it becomes hard to manage numerous Microsoft 365 mailboxes individually.
#2. Use PowerShell Method to Retrieve Blocked Senders
It is good for Exchange Online administrators to check mailbox junk email settings.
- According to Microsoft, administrators can use the below command to find out safe sender and blocked sender settings for mailboxes.
Get-MailboxJunkEmailConfiguration
- It is good to find out the junk email settings for a certain mailbox, and then check the list of blocked senders.
- As an example, you can use the following command:
Get-MailboxJunkEmailConfiguration -Identity [email protected]
Important – Blocked Senders and Tenant Block List Are Different
When you are performing Office 365 migration, one common error which users make is that they combine all blocked senders. Like, they think as if they belong to one common list.
Microsoft 365 provides various blocking tools that include:
- Outlook Blocked Senders – It is valid for a particular mailbox
- Tenant Manage Block/Allow List – Allows blocking on organizational levels
- Blocked Sender lists in Spam Filter Policy – User can apply to many mailboxes
- Mail Flow Rules – Helps to detect and manage unwanted & Spam messages
- IP Block List – It works at the connection filtering level
Why Manual Methods Fail?
You may face difficulty when you see the query “export blocked senders list Office 365”. The main limitations are given below:
- Need to access user details separately
- Retrieve blocked senders data one by one
- You need to maintain export files for each user
- It is necessary to associate each file with the mailbox
- For every mailbox, you need to repeat the same steps
- Configure the same settings at the new system
- Not taken care of important filtering settings
Export Blocked Senders List from Office 365 to Popular Formats Professionally
If you want to export your Office 365 data to other platforms, then you can use SysTools Office 365 Export tool for this. It helps users to migrate the entire mailbox data to formats like PST, MBOX, PDF, EML, & MSG. The software can also load shared & archive mailboxes. This is primarily used for migration or backup purposes.
Key Features:
- You can transfer many Office 365 user emails
- Export even archive and shared mailboxes
- Save mail as PST, MBOX, PDF, & more
- Apply category as well as date filters
- Keep the attachments and metadata intact
- Gives you data status like read or unread
- Generate final report of the process
- Perform bulk transfer of Office 365 data
Tool Steps to Export Blocked Senders List from Office 365
1. Download & Install our automated software in your system.

2. Next, keep Office 365 as source and PDF as destination platform.

3. Choose the necessary workload under the work and select from one of many mailbox workloads that there are like Email, Contacts, Calendar etc.
- Once you choose the date filter, you get the data of these time periods.

4. The credentials used to log in to your Office 365 Admin account will serve authentication purposes.
- Press the Validate button and confirm that you have the correct permissions set.

5. Identify the Destination Folder in which you will be saving your PDF files. The folder path must not exceed 20 characters in length.

6. Add users with the help of these following methods:
- Fetch Users – Automatically fetch users from the Source domain.
- Import Users – Export users data using CSV files.
- Download Template – Save CSV template to create users.

7. Pick the users who want to export their information and press the Start Export button to begin the process.

8. Once the entire process is done, click on the Download Report option.

Note: For more details on the procedure of exporting Office 365 Mailbox Online, check the software documentation.
End Note
We have shown you different ways for this query “export blocked senders list Office 365”. You must check where the list is configured to determine which method is best for you. For a few users, it may be enough to go with our mentioned manual methods. However, it is best to use our professional solution to export your Office 365 data into different formats.