[Update]: This blog post was updated on September 1, 2020.
In this article, you can find out how to set up your own server-level automatic email signature or disclaimer in Office 365. Like most of today’s email signature solutions, it supports HTML content such as tables, images and font formatting, but in contrast to e.g. G Suite, it also allows for automatic personalization of individual signatures. However, there is no option to e.g. insert the signature directly below the latest reply/forward, or preview it in the user’s mailbox.