Badex Signature

Badex Signature is the only email signature platform that works seamlessly with both Microsoft 365 AND any SMTP-based email client — including cPanel, Plesk, Roundcube, Directadmin, Thunderbird, and Apple Mail.

Key Features:

- Centralized signature management for your entire organization

- Native Microsoft 365 integration via Microsoft Graph API

- SMTP support for any email provider with DKIM signing

- Drag-and-drop template editor with QR codes, banners, and disclaimers

- Multi-tenant architecture for agencies and resellers

- Real-time sync with Microsoft 365 users

- Role-based access control

- 14-day free trial — no credit card required

Perfect for businesses that use Microsoft 365 but also have employees using other email clients. One platform, all your signatures, always consistent.