Outlook.com email attachment size limit

Content
  1. Can’t send emails from Outlook.com? You can exceed these limits
  2. Outlook.com Email Limits
  3. Send large files via email

Can’t send emails from Outlook.com? You can exceed these limits

Like all email providers, Outlook.com imposes restrictions on a number of things related to email. There is a limit on the size of email file attachments, a limit on the number of messages sent per day, and a limit on the number of recipients per message. However, these Outlook.com email restrictions are not unreasonable. In fact, they are much bigger than you might think.

The information in this article applies to Outlook.com and Outlook Online.

Outlook.com Email Limits

The size limit when sending emails from Outlook.com is not only calculated by the size of attachments, but also by the size of the message, such as body text and other content.

The total size limit when sending email from Outlook.com depends on whether you’re attaching a file stored on your computer or a file stored in OneDrive. If the file is stored on your computer, the maximum attachment size is 34 MB; for a OneDrive file, the attachment size limit is 2 GB.

In addition to message size, Outlook.com limits the number of emails you can send per day to 300 and the number of recipients per message to 100.

Send large files via email

When you upload large files and photos to Outlook.com that are larger than the size limit, you are prompted to upload the files to OneDrive first. This makes it easier to send an Outlook file and ensures that the recipient is not limited by the size of their email services. This relieves your account and theirs if their provider doesn’t accept large files.

Another option for sending large files is to upload the files first to a cloud storage service such as Dropbox, Google Drive or OneDrive. When it’s time to attach files to an email, select Location in the cloud instead of Computer to send files downloaded from the Internet.

If you want to send something even bigger, email the files in small batches, create a compressed ZIP file from attachments, save the files online and share download links, or use another file upload service.

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