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Overview Plans Ratings + reviews Details + support

Outlook email signatures for M365: free add-in included; Pro adds admin portal, seats & campaigns.

DOCUNIZE SunnySign Pro delivers professional email signatures in Microsoft Outlook and Microsoft 365 — start for free, scale organization-wide when you need to.

Always included: the SunnySign Outlook add-in

Every user can use the DOCUNIZE SunnySign Outlook add-in (even without a paid subscription):

Professional email signatures directly in Outlook (desktop and web)

Automatic insertion of the selected default signature in new messages

Simple management of personal signatures in the task pane

Outlook Mobile: no add-in UI; the launch event inserts the default signature when composing a new message (after it was set once in desktop or web)

With SunnySign Pro: organization, brand control & marketing

The SunnySign Pro SaaS subscription extends SunnySign for companies and teams:

Central org templates — consistent, on-brand signatures for all licensed users

Seat-based licensing — IT admins assign seats in the admin portal (Microsoft Graph)

Admin portal — onboarding, dashboard, licenses, settings

Roles via Entra groups — separate tenant admin and template editor roles

Campaigns — time-bound banners and content below the signature (e.g. events, product news)

No “Powered by SunnySign” watermark on Pro signatures

Placeholders for dynamic content in templates and campaigns

Who is it for?

Especially suited for SMBs, agencies, IT service providers, and larger organizations that want to:

strengthen brand identity in email communication,

ensure mandatory legal/disclaimer lines and a consistent company presence,

use signatures as an additional communication and marketing channel,

reduce support effort through central management.

How Free and Pro work together

The Outlook add-in DOCUNIZE SunnySign (free on Microsoft Marketplace) and DOCUNIZE SunnySign Pro (this SaaS offer) complement each other: users work in the same Outlook experience; Pro unlocks tenant-wide features, licensing, and campaigns.

Note: After purchase, a short onboarding is required (Entra sign-in, Graph admin consent, admin and editor groups, license assignment).

At a glance

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SunnySign Pro