While using Outlook, users get a 20MB cap on the file size of their attachment, i.e., a user can only mail file (s) as big as 20MB in one email.

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.

Pressing "Reply" in Microsoft Outlook does not automatically transfer the attachments from the original email to the new message. However, you don't need to manually reattach the omitted files ...

Microsoft Outlook includes a set of tools that simplify the management of email attachments. You can use the tools to move your file attachments to a folder on your desktop, making it easier to ...

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