Tips to Increase Outlook Mailbox Size in Windows 11/10

Jackson Strong | May 17th, 2023 | Data Backup, Outlook

Can you increase Outlook mailbox size in Windows 11? This is the most often asked query by Outlook users. As it is very common that your Outlook mailbox may get exhausted easily if you receive and send a lot of emails through your Outlook application.

As we know Outlook is a popular email client used by millions of people around the world. It offers a wide range of features and functionalities, but one limitation users often encounter is the mailbox size restriction. By default, Outlook imposes a maximum mailbox size, which can lead to frustration when trying to manage your emails efficiently. Fortunately, there are ways to increase Outlook mailbox size in Windows 11. In this blog, we will explore effective methods to help you overcome this issue and make the most of your Outlook experience.

Why Increase Outlook Mailbox Size in Windows 11?

Users with large mailboxes using the Outlook application encounter several common issues, including:

  • Difficulties sending and receiving emails through Outlook, often encountering error messages.
  • Users may receive an error message stating indicating that the mailbox has exceeded its maximum size limit.
  • You also cannot expand the folder message in Outlook if the mailbox size limit is exceeded.
  • You may experience difficulties reading email messages within the inbox folder of Outlook.
  • Users may encounter problems when attempting to delete emails, which results in the inability to free up space on the server.

These issues can significantly impact the usability and efficiency of Outlook applications for users with large mailboxes.

Let’s discuss some possible solutions that can be used to help you out of this situation.

How to Increase Outlook Mailbox Size in Windows 11/10?

There are various methods to expand Outlook mailbox size. We have researched and then we are going to offer the best approaches that can help you to increase Outlook mailbox size in Windows 11/10/8 etc.

So, let’s go through each method one by one carefully;

Method 1: Archive Old Emails

One of the simplest and most effective ways to increase your Outlook mailbox size is to archive old emails. Archiving allows you to move older messages to a separate location while still keeping them accessible whenever needed.

Method 2: Compact Your Mailbox

Another effective way to increase your Outlook mailbox size is to compact your mailbox. Over time, your mailbox may accumulate unused space due to deleted items or attachments. Compacting your mailbox reorganizes the data and removes this wasted space.

Method 3: Upgrade Your Outlook Plan

If you have exhausted the above options and find that you still need more mailbox space, you may need to consider upgrading your Outlook plan. Microsoft offers various plans with different mailbox size limits, including both free and paid options. Upgrading to a higher-tier plan will provide you with additional storage capacity, allowing you to manage your emails more effectively.

Is Your Outlook Mailbox Full? Pro-Tip to Download Outlook Emails on PC

Often manual solutions are not able to give you the desired results and upgrading Outlook plan may be expensive for you. In such situations, Try Advik Outlook OST Converter Tool which can backup or convert email data from Outlook mailbox to 30+ different file-saving options. It is an effective way to save Outlook emails to PST, EML, PDF, MSG, DOC, HTML, MHT, CSV, ICS, and many other file formats.

If you are facing issues to copy Outlook emails to USB flash drive or any other system, then you can also upload Outlook data files (OST or PST) to various cloud-based email services. For instance, you can import OST to Gmail, Yahoo Mail, Zoho Mail, Exchange Server, Yandex Mail, Zimbra Webmail, Roundcube, Rackspace, Office 365, etc.

Final Words

Dealing with mailbox size limitations in Outlook can be frustrating, but fortunately, there are ways to increase Outlook mailbox size in Windows 11, 10, 8, and many others. You can overcome the limitations and enjoy a more efficient email management experience. Implement the methods that best suit your needs and maximize the potential of Outlook for Windows.