How to Increase the Size of Outlook Mailbox? Get the Best Approach

Summary:-It is common for your Outlook mailbox to fill up with junk emails over time. In this article, we will help you increase the size of your Outlook mailbox. Additionally, we will explore the reasons and the most practical methods to delete duplicate Outlook emails using the Aryson Outlook Duplicate Remover.

Limitations of the Outlook Mailbox Size

Microsoft Outlook is one of the most widely used email service clients across the globe. However, it possesses some size limitations. Additionally, these size limitations create hurdles for users as the storage space fills up quickly, causing common Outlook errors. Some size limitations of the Outlook mailbox are as follows:

  • Microsoft has released multiple versions of its Outlook client, spanning from Outlook 97 to Outlook 2016. Despite the different versions, all Outlook iterations create Outlook data files in the PST (Personal Storage Table) format.
  • From Outlook 2003 to 2016, Outlook utilizes the Unicode format for saving its PST files.
  • Moreover, the primary distinction between ANSI and Unicode lies in the size limitations of PST files they support.
  • Additionally, ANSI-formatted PST files have a maximum size limit of 2 GB.
  • Unicode-formatted PST files, on the other hand, can store a larger volume of mailbox content.
  • Unicode PST files can accommodate between 20 to 50 GB of data.
  • Specifically, this translates to a 20 GB storage capacity for Outlook versions 2003 to 2010 and a 50 GB capacity for Outlook versions 2013 and 2016.

Furthermore, when the Outlook mailbox reaches full capacity, PST files often become corrupted. Hence, it becomes essential to repair these corrupted PST files to recover their data. Utilizing the PST Repair tool is highly recommended for this purpose.

Approaches to Increase the Size of Outlook Mailbox

There are several ways to increase the size of the Outlook Mailbox. Additionally, you can manually allocate quotas for folders to manage storage space. Moreover, you can either archive emails or purchase Outlook plans to expand the size of the Outlook Mailbox. It’s also worth noting that over time, duplicate files can accumulate when using Outlook, occupying storage space. Therefore, it’s necessary to remove duplicate PST files. Additionally, users can also split large PST files of MS Outlook. Now, let’s discuss the approaches to increase the size of the Outlook Mailbox.

Approach 1: Manage the Folder Quotas

This metric indicates the actual storage capacity of an end user’s mailbox. Generally, when the storage reaches 98% capacity, the user receives a warning to take action to prevent exceeding the limit. An effective strategy for email administrators is to segregate end users based on their email usage levels. For users with lower email activity, a lower quota limit can be set, allowing the remaining capacity to be allocated to users with higher email usage, thereby increasing their storage size.

Approach 2: Archive the Outlook Mailbox

By employing this method, you’re not deleting emails; instead, you’re relocating old messages to an inactive storage location. Consequently, by archiving your older emails, you can augment the size of your allocated email space without incurring additional expenses. Typically, depending on your M365 plan type, you’ll receive up to either 50 GB or 100 GB of archiving storage, which is considerable. In cases of utmost necessity, you can even acquire up to 1.5 TB of archiving space, albeit exclusively available with top-tier licensing plans, incurring additional costs accordingly. However, the advantage lies in the fact that once the 100 GB allotment size is reached, an additional 100 GB is provisioned at no extra charge. This is referred to as “Auto Expanding.”

Approach 3: Delete Unwanted Outlook Emails

Perhaps the most effective method to increase space in your email account is by removing non-critical emails. Outlook provides a feature to designate emails as critical or not, simplifying the decision-making process for deletion. If you’re reluctant to delete any email messages, the next alternative would be to back them up to another storage account within M365.

Approach 4: Delete Duplicate Emails to Increase Size of Outlook Mailbox

Aryson Outlook Duplicates Remover is a utility designed for Windows that effectively eliminates duplicate items from various components such as emails, contacts, calendars, and tasks within Outlook. This software specifically targets duplicate email items in MS Outlook, aiding in the reduction of PST file size. The steps are as follows:

  1. Install and launch the Outlook Duplicates Remover as an administrator.
  2. Click on the Add Files to add the PST files to the software wizard.
  3. Select the Folders/files from the tree structure format and click Next.
  4. Choose the Duplicate criteria and other Features/filters.
  5. Finally, click on the Next button to initiate the process to remove duplicates.

Conclusion

We’ve concluded the discussion on enlarging the Outlook Mailbox. There are numerous methods available for clearing out unnecessary emails from your Outlook Mailbox. Additionally, in situations where Outlook emails are accidentally deleted, it’s necessary to recover the deleted PST files. It’s recommended to maintain a clutter-free mailbox to enhance user efficiency and performance.

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About The Author:

Rohan Wiese is a Technical Writer at Aryson Technologies. He is an expert Email Forensic, Cloud Computing, and a passionate nerd with over 10 years of experience in technical content writing. He writes about Cloud Migration, Database Recovery, Email Backup, Windows, Mac, and Tech.

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