Outlook Email Attachment Size Limit
What is the file size limit for Outlook?
The file size limit for Outlook is 25MB. If you want to send a large file, try sending it via a cloud storage link like Dropbox or OneDrive.
How can I send files larger than 25MB in Outlook?
You can either hack into your Registry Editor and make changes to the file size limit there or send attachments via clickable links.
How do I increase attachment size in Outlook?
To increase the attachment size in Outlook you will need to change the settings within your Registry Editor. Before you do this, backup your email account so you don’t lose anything!