Want to send a file more than 25 MB, but cannot attach It.???Well here is office 365 providing solution to your problem.

There have been a lot of discussion about increasing the attachment size on Office 365, few articles on our site already about it, finally MS has heard our prayers and has provided a solution, now the maximum message size can be increased upto 150 MB. The default size will remain 25 MB and no settings of the existing accounts will be changed by default, instead freedom will be given to the user to choose the maximum size settings as per their needs.

Users can customize the maximum allowed message size for any or all of your mailbox as long as it’s between 1MB to 150 MB. Users can change the default settings for their organization by adjusting the default message size restrictions.

Simply select Recipients> Mailboxes then click “……” and select Set Default Message Size Restrictions.

150 MB setup- Step 1

150 MB setup- Step 1

 

Then specify the maximum message size for new mailboxes.

150 MB setup- Step 2

150 MB setup- Step 2

 

To edit multiple mailboxes select recipients > mailboxes and select multiple mailboxes. Then from the Bulk Edit pane under Message Size Restrictions select Update.

150 MB setup- Step 3

150 MB setup- Step 3

 

Finally, customize a single mailbox by selecting recipients > mailboxes and then select a user’s mailbox. Click the edit icon, then under Message Size Restrictions, click View details and then specify the maximum message size

 

150 MB setup- Step 4

150 MB setup- Step 4

 

Which one to use and when Exchange Admin Center or Remote PowerShell

If your organization is comprised of less than 1,000 mailboxes, you’ll likely end up using the Exchange Admin Center user interface to make changes. But if your organization has more than 1,000 users, you may want to make these changes via Remote PowerShell. Updating thousands of mailboxes at a time can take a while to complete—a rough rule of thumb is around 5 to 10 minutes per 1,000. And while replicating the updates across the service typically takes an additional 15 minutes, allow up to 30 minutes after the update process is finished before testing out the new settings.

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Arshdeep Singh

A computer science  engineer by profession and a tech geek at heart. Love to get my hands dirty with upcoming technologies. A positive thinker with high creativity, always looking for new Challenges, keen to find the key for every lock. 

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