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The OST file data has a limit of 50GB in Outlook. As the user reaches the limit, they start getting Outlook performance issues, sending/receiving email issues, features not working properly, etc. Moreover, you get an error message popping up that says, “Your Mailbox is Almost Full”. There is a concern with this message that must be fixed to ensure uninterrupted email services and to prevent issues with Outlook, such as being unable to send or receive new emails.
Our blog outlines the best solutions to this Outlook error. From archiving the mail items to disabling Cached Exchange Mode, follow our step-by-step instructions for each solution. Let us get started for now.
There are a few basic reasons for the prevalence of the “Your Mailbox is Almost Full” error. They are:
Here are the latest solutions carried out by experts to fix this error.
Get rid of unwanted attachments and emails from your mailbox by using Outlook cleaning tool. Here are the steps to follow:
To manage the Outlook 365 storage space and fix the “Your Mailbox is Almost Full” error, you must archive the older mails. Go through the instructions below:
If Cached Exchange Mode is enabled in your Outlook 365 profile, OST files will be locally copied to your computer, consuming significant storage. In addition, when working with a shared mailbox in Cached Exchange Mode, the email client becomes slow due to the high amount of storage consumed.
When this happens, you can fix it by disabling Cached Exchange Mode:
Oversized emails and attachments take up a lot of Outlook 365 mailbox storage space. You can easily delete these large mails and fix the Outlook error “Your Mailbox is Almost Full” with the below steps:
Through these methods, you can manage Outlook 365’s performance and continue to receive and send emails. Also, users can recreate OST files to solve the Outlook 365 mailbox full issue permanently.
Get Kernel for OST to PST, a software tool designed for effortless data migration from inaccessible OST files to various formats, including PST. It is highly favored by IT professionals and supports conversion to PST, PDF, MSG, EML, RTF, TXT, HTML, and DOC files.
Moreover, it can migrate OST files to Live Exchange, Office 365, Gmail, and other IMAP servers. The tool is capable of handling bulk and large-sized OST files with advanced features like preview mode for calendar entries, recovery of attachments, and conversion of encrypted OST files. It also includes a powerful search feature for easy file location and offers a trial version that allows migration of 25 items per folder.
Outlook 365 provides a maximum of 50 GB storage and thus, it makes mailbox organization crucial. We have discussed many ways to manage Outlook 365’s storage and fix the “Your Mailbox is Almost Full” issue. For effective management, consider using Kernel for OST to PST, a reliable tool for converting OST to PST files.
This software can transform inaccessible mail items into accessible PST format and store attachments separately and reduce the overall size of Outlook data files. Moreover, it can split large OST files into smaller, manageable PST files with attachments, further aiding in storage space management.