While many professionals agree that email is not the best method for sending large files, It is also important to understand how the convenience of emailing large files often convinces users to do this. Things to consider before increasing the message and attachment size for Microsoft 365:Īn increased size limit can be very beneficial for users who either have a higher limit for their general user population, or who have a few specific mailboxes that need to receive very large emails. In the smaller window that appears, set a maximum size limit for messages that are sent and received, and then save the changes made.

From the top panel select ‘Set default message size restrictions’.Select ‘Mailboxes’ from the drop down list.In Office 365, click on the menu button.Increasing the attachment size setting in the Exchange admin center: In this blog post, I have highlighted how to increase mail attachment size in Office 365 by changing the settings in the Exchange admin center. However, you can change the maximum message size for an individual mailbox with the Office 365 Admin Center.

This is because email text is usually quite short and by having this default setting, users are restricted within the maximum attachment size that has been set.

In Office 365, the default size for messages and email attachments is not set at its maximum capacity.

Setting up mfa for office 365