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Every organization has different infrastructure, security policies, and email workflows. WiseSignly supports three deployment paths, and you choose per tenant. Microsoft customers pick SMTP or add-in (not both simultaneously). Google Workspace uses Gmail API deployment.
Side by side
Compare deployment models
| Capability | M365 SMTP | M365 Add-in | Google Workspace |
|---|---|---|---|
| Deployment method | Server-side SMTP | Outlook add-in (compose-time) | Gmail API batch |
| User visibility | Transparent, applied automatically | Visible when composing email | Set in Gmail settings |
| Context rules (subject, recipient) | Yes | Yes | Attribute-based only |
| Directory sync | Azure AD | Azure AD | Google Directory |
| Admin requirement | Global / Exchange Admin | Global Admin (add-in deploy) | Super Administrator |
| Can use with Google? | , | , | Yes |
| Can use with Microsoft 365? | Yes (one mode per tenant) | Yes (one mode per tenant) | , |
One product, flexible deployment per cloud platform
Switch models when your infrastructure evolves
Same templates, rules, and campaigns regardless of path
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