You can forward an email as an attachment from Outlook.com as well as the Outlook desktop app. It is possible in Outlook 2019/16 as well as Microsoft 365.

Attaching an Outlook Business Card to an email is similar to attaching a standard vCard file. To do this, click "Attach Item" on the ribbon bar in the Message window and then click "Business Card." ...

How to Attach Multiple Files to an Email. The ability to send emails with multiple attachments enables you to keep your message organized and increases your efficiency by leaving more time to ...

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

I recently migrated from Outlook Express to Outlook 2003. It's been a relatively smooth transition save for one irritating glitch: Outlook 2003 can't "see" Zip files. When I try to attach one to ...