How to Delete Multiple Emails in Outlook- Step by Step Guide

  author
Written By Ashwani Tiwari
Anuraag Singh
Approved By Anuraag Singh
Modified On July 15th, 2025
Reading Time 9 Minutes Reading

If you’re trying to delete multiple Outlook emails, as it’s not easy to handle large unwanted conversations and want to reduce Outlook mailbox size. So, in this article, we’ll discuss 10 effective methods which can resolve the issue. Let’s start solving the problems.

Author’s Answer to Delete Multiple Emails in Outlook

To know how to mass delete emails on Outlook:

  1. You can simply select those emails by clicking Ctrl for each email or pressing Shift+Delete to delete all Outlook emails at once.
  2. For quick cleaning, use the search tab in Outlook to filter specific items by subject, data, or sender. Then, press Ctrl+A to select all and delete them.
  3. If you want to bulk delete emails Outlook by date, size, or subject, arrange folders according to you and delete them.
  4. Also, you can use an automated method, which can help to mass delete emails in Outlook efficiently. How to select multiple emails in Outlook to delete if you’ve a mailbox with duplicates, using SysTools Outlook Duplicate Remover, which can identify and delete similar emails, ensuring inbox management which saves your time.

Why is There a Need to Delete All Outlook Emails at Once?

Before we get into the solution, let’s know what are many reasons are to mass delete Outlook emails as follows:

  • Free up Storage- it helps to eliminate errors like mailbox full and makes Outlook performance better.
  • Improve Email Organisation– it helps to get rid of unwanted emails, which removes chaos and clutter as a result, better focuses on important conversations.
  • Boost up Performance- if your mailbox is empty, then Outlook may run at its highest speed without any lag.
  • Easy Email Management- it is simpler and easier to manage a cleaned mailbox rather than one full of many unnecessary emails.
  • Migration or Reset- it is important when changing accounts to a new account or resetting Outlook.
  • Prevention of Duplicates– it deletes older messages, which helps to prevent the data from being duplicated.

How to Delete all Outlook Emails at Once Using 8 Top Best Ways

If you’re an everyday Outlook user, you might be dealing deleting unwanted emails using many effective ways given below:

  • Manual Selection Using Ctrl or Shift
  • Use Outlook Search Bar
  • Delete Emails by Group (Date, Size, Sender)
  • Empty a Folder Entirely
  • Outlook Web App (OWA)
  • Outlook Rules for Auto-Deletion
  • Use Outlook Mailbox Cleanup Tool
  • Use a Professional Tool

Let’s understand them:

#1 How to Mass Delete Emails on Outlook by Manual Selection Using Ctrl or Shift

Steps to use:

  1. Open MS Outlook
  2. Go to folders like inbox, spam, etc.
  • Click Ctrl to select emails individually
  • Press Shift to select and to bulk delete emails Outlook
  1. Right-click to delete or simply press delete.

Pros:

  • It is easy and quick to use for small sets of emails.
  • No installation of any software.

Cons:

  • Very slow and steady for the large sets of emails.
  • There is some risk of losing data accidentally.

#2 How to Delete Multiple Emails in Outlook: Use Outlook Search Bar

Steps to use:

  1. In Outlook, type an issue like from:[email protected] or Subject: Leave.
  2. Click Enter.
  3. Press Ctrl+A to select all conversations.
  4. Then delete.

Pros:

  • It mass delete emails in Outlook using filters like date, subject, etc.
  • This method can save time when deleting emails in bulk.

Cons:

  • Misses many emails when filters are set incorrectly.
  • It’s not an automation method, it still requires to manual deletion.

#3 Delete Emails by Grouping {Date, Size, Sender}

Steps to use:

  1. Press View, click Arrange by, then Date, Size, or Sender.
  2. You can make your group bigger, like Last Month
  3. Right-click the header of the group and delete every email.

Pros:

  • Immediate deletion action for bulky emails
  • Keeps the data structure intact while deleting.

Cons:

  • It needs to be adjusted or sorted.
  • Might delete important or needed conversations if not viewed properly.

#4 Empty a Folder Entirely to Mass Delete Emails in Outlook

Steps to use:

  1. Right-click on folders like spam, junk or trash.
  2. Press empty folders.
  3. Confirm the process of deletion.

Pros:

  • It’s the quickest way to delete complete folders.
  • Also, this method is mainly for junk, spam or trash.

Cons:

  • Always take a backup, if not, then it’ll delete everything.
  • There is no selection of emails as it’s only for selective folders.

#5 Permanently Delete Outlook Email Shortcut in Outlook Web App (OWA)

Steps to use:

  1. Navigate to Outlook.
  2. Choose any selective folder you want.
  3. Tap the checkbox and select all conversations on the pages.
  4. Click delete and do the same process for other folders.

Pros:

  • It is easily accessible from any operating device.
  • Great interface and very convenient to use.

Cons:

  • It provides fewer features to operate.
  • This method delete all Outlook emails at once.

#6 Outlook Rules for Auto-Deletion to Delete All Multiple Outlook at Once

Steps to use:

  1. Nav to file, then click on manage rules & alerts.
  2. Press on new rule
  3. Set filters like subjects, sender, etc.
  4. Select delete action button.

Pros:

  • This method is proper automation for upcoming emails.
  • It helps to reduce manual work

Cons:

  • It needs a proper process to avoid deleting important emails.
  • It doesn’t delete emails which are already emails.

#7 How to Mass Delete Emails on Outlook: Use Mailbox Cleanup Tool

Steps to use:

  1. Click File, press Tools and then Mailbox Cleanup
  2. It has an option to delete like
  • Old emails before 100 days
  • Bigger emails in size, like 50 MB
  • And specific folders
  1. Then, review and manually delete one by one.

Note: Here, you can see many options like view mailbox size, find items older than, find items larger than, view deleted items size, empty deleted items, view conflicts size, and empty conflicts. Where you can choose any options and then delete them.

Pros:

  • This method helps to identify which conversation takes up how much space.
  • It’s a built-in feature and very safe to use.

Cons:

  • It doesn’t auto-delete by itself, you’ve to manually delete.
  • This method requires the same filtering process as compared to third-party software.

#8 How to Delete Multiple Emails in Outlook: Use a Professional Tool

Sometimes, a user is looking for a quick and automated method, where the problem is that everyone is searching for how to mass multiple conversations on Outlook, but if someone wants to delete conversations in Outlook, as it is duplicate emails should also be deleted. So, we recommend that you use Outlook’s similar conversations deletion utility, which is designed by Systools.

 
This software identifies and mass deletes emails in Outlook which are duplicates and makes the Outlook mailbox full. It will be deleted by checking similar attributes. Also, it is a standalone tool which needs no installation of any other software. Let’s check out its steps of this utility.

How to Delete Several Emails in Outlook: Steps to Use

  1. Download and run the automated tool to mass delete emails in Outlook.
  2. run

  3. Click Add File or Folder button to add OST/PST files, which are supported by Outlook
  4. add files

  5. Select either within or across folders where you want to trash duplicates.
  6. within folders

  7. Choose location to save the resulting PST file.
  8. location

  9. like in select item types like emails, calendar, tasks, etc.
  10. select item type

  11. In Specify Duplicate Criteria option, specify to delete all Outlook emails at once.
  12. delete multiple emails in outlook

  13. Click OK when process is done of mass delete emails in Outlook.
  14. ok

Read Also- How to Remove Duplicate Emails in Outlook?

How to Delete Multiple Emails in Outlook on Mac?

To delete all messages in Outlook Mac,follow these steps:

  1. Navigate to Outlook folder like inbox, spam, or sent in which you want to delete.
  2. Hold command and click all emails or press shift, then click to first from last mail.
  3. click Delete button.
  4. If you want to delete permantly then select all emails in deleted items folder by clicking on command+A and then, press delete.
Conclusion

In this article, we’ve discussed how to delete several emails in Outlook using various best methods, which can be effectively and efficiently used to mass eliminate messages in Outlook. Mostly are manual ways, but we’ll recommend using the best automated method, which can help you a lot in deleting multiple emails in Outlook fast, as this tool is a safe and secure which bulk removes conversations in Outlook. Keep your mailbox organised by knowing how to delete multiple messages in Outlook.

FAQs on How to Delete Multiple Emails in Outlook

Q.1 What is the quickest method to clear messages in Outlook?

A. The quickest method to delete all Outlook emails at once is to select all emails by clicking Shift or Ctrl+A, then pressing delete button. Also, the search bar in Outlook makes the process quick as it uses filters and bulk deletes them.

Q.2 What is a permanent conversation Outlook email shortcut?

A. The permanent shortcut is to click the Shift + Delete key on emails which are selected and do the same process for the deleted items folder; as a result, all emails get permanently deleted.

Q.3 How to select multiple emails in Outlook to delete?

A. To select a particular set of emails, click the first email and then press Shift to last email. If you want to select different emails, then hold Ctrl and click on email which you want, where you can Ctrl+A if it is in one folder.

Q.4 How to bulk delete emails in Outlook by sender?

A. You can press Ctrl+A to select all and mass eliminate messages in Outlook by pressing delete key, or you can use Outlook search bar for quick deletion.

  author

By Ashwani Tiwari

Being a Chief Technical Analyst, I am aware of the technicalities faced by the user while working with multiple technologies. So, through my blogs and articles, I love to help all the users who face various challenges while dealing with technology.