WEB & WORKSPACE
Gmail
Clean, web-safe signature delivery with account-specific installation and reply defaults.
- Remote images require recipient access
- Gmail may trim unusually large HTML
- Test new-message and reply defaults
EMAIL COMPATIBILITY CENTERDesigned for the inbox.
Designed for the inbox.
Verified in the real world.
Email clients interpret HTML differently. Signature Studio builds from resilient standards, then makes the remaining client-dependent behavior clear.
Brand-safe structure Main and reply layouts Real-client verification
One approved
signature sourceGoverned centrally
GmailWebOutlookDesktopApple MailmacOSMobileiOS · Androidsignature sourceGoverned centrally
CLIENT-BY-CLIENT VIEW
Know what changes before you send.
Select an environment to focus the guidance. We use verified wording because a professional compatibility promise should be clear—not absolute.
WINDOWS, MAC & WEB
Outlook
Table-based layouts designed for Outlook’s different desktop and web rendering engines.
- Classic Windows Outlook uses a Word-based engine
- New Outlook and web can behave differently
- Tenant and client version affect deployment
MACOS
Apple Mail
Polished HTML rendering with separate verification for local settings, fonts, and image behavior.
- Installed fonts can vary by device
- Mail settings may restyle pasted content
- Test macOS and iOS independently
IOS & ANDROID
Mobile
Compact, readable signatures prepared for narrow screens without relying on fragile interactions.
- Apps may apply their own scaling
- Dark mode can transform colors
- Touch targets and wrapping require real-device tests
COMPATIBILITY MATRIX
A practical view—not a blanket promise.
OptimizedVerifyClient-controlled
| Signature element | GmailWEB & WORKSPACE | OutlookWINDOWS, MAC & WEB | Apple MailMACOS | MobileIOS & ANDROID |
|---|---|---|---|---|
| Core layout | Optimized | Optimized | Optimized | Optimized |
| Hosted images | Verify | Verify | Verify | Verify |
| Clickable links | Optimized | Optimized | Optimized | Optimized |
| Custom fonts | Client-controlled | Client-controlled | Verify | Client-controlled |
| Dark mode | Client-controlled | Client-controlled | Client-controlled | Client-controlled |
| Reply layout | Optimized | Verify | Verify | Verify |
“Verify” does not mean unsupported. It means the final result should be checked in the exact app and device your team uses.
CLEAR RESPONSIBILITY
What Signature Studio controls—and what the inbox decides.
This distinction protects customers from unrealistic guarantees while giving administrators a dependable testing and rollout standard.
The approved source
- Brand-governed content and layouts
- Table-based email-safe structure
- Main and compact reply signatures
- Linked contact and social elements
- Installation and approval workflow
The final rendering environment
- Image blocking and privacy settings
- Dark-mode color transformations
- Font availability and fallback
- Automatic scaling on mobile
- Forwarding and quoted-message changes
THE PROFESSIONAL TEST STANDARD
One preview is not the final test.
Use the approved preview to confirm content, then send real messages across the environments your organization depends on.
View installation guides- 01PreviewConfirm approved content, links, main layout, and reply layout.
- 02InstallUse the correct employee account and platform-specific path.
- 03SendTest a new email and a reply to both internal and external inboxes.
- 04VerifyReview desktop, mobile, images, links, spacing, and dark mode.
COMPATIBILITY WITH CONTEXT
Request a compatibility walkthrough Tell us where your team sends.
We will walk through the active email clients, installation path, and practical verification plan for your organization.