To forward an email as an attachment from the Outlook app, follow these steps- Select the email that you want to send as an attachment. Click the More menu in the Respond section.

When you send an email message from a Microsoft Outlook client that is configured incorrectly, the receiver may receive an attachment with the name winmail.dat. This is a binary attachment that ...

Increase attachment size limit on Outlook by adjusting registry settings or using cloud storage options. Send larger files easily without hitting size restrictions.

If you're a paying customer of Microsoft 365, you can use Outlook to encrypt email from sender to recipient. Here's how to send and read encrypted email.