ExSign for Microsoft 365 (Server-Side) is an ideal email signature solution for M365 tenants. See the list of features below:
Admins can access the central portal anytime through a web browser.
Admins can view all the rules and signatures across multiple Microsoft 365 organizations in one place and administer them accordingly.
The stamping agent can be easily deployed on-premises or hosted in any cloud service, such as AWS or Azure.
Not only can banners be displayed with email signatures, but they can also be run for a set period and then automatically removed or updated when required.
Users from organizations without physical infrastructure (servers or hardware) can sign in using their Azure credentials.