Microsoft 365 (Server-Side)

Microsoft 365 (Client-Side)

Hybrid Mode

Signatures are stamped after an email is sent. They are not visible while composing an email. Signatures can be seen in the sent items folder.

Signatures are automatically inserted into the email body as users compose an email in Outlook.

For users configured to use server-side stamping, signatures are stamped after an email is sent while for those configured to use client-side stamping, signatures are inserted in the email body.

Users have less control over their email signatures.

Provides users with more control over their email signatures as they can preview signatures before sending.

Server-side users have less control while client-side users have more control.

Works with all email clients & devices on all OS platforms (including Android and iOS).

Works only with Outlook running on Windows, Mac, iOS, Android, and OWA.

Works with all email clients & devices on all OS platforms.

Requires two Microsoft 365 connectors and one mail flow rule in the M365 tenant to route and process email stamping.

Utilizes the Outlook add-in to push signatures to the desired mailboxes.

Combines both the Microsoft 365 connectors and the Outlook add-in.

Utilizes an SMTP service to communicate with Microsoft 365.

Works independent of SMTP.

Utilizes both an SMTP service and an Outlook add-in.

Detailed reporting for each user such as the number of emails sent.

No detailed reporting.

Detailed reporting for each user such as the number of emails sent.

Admins can test signature rules and preview signatures in the central web console.

Admins can test signature rules and preview signatures in the central web console.

Admins can test signature rules and preview signatures in the central web console.

Admins can display and manage banners with email signatures.

No banner management.

Admins can display and manage banners.

Can convert plain text email to HTML.

Cannot convert plain text email to HTML.

Can convert plain text email to HTML.