Exclaimer vs WiseStamp vs the Mac-Native Way: Which Signature Approach Fits You?
Signature tools look interchangeable until you notice they're three different architectures solving three different problems. Pick the architecture first — the product choice follows almost automatically.
The three architectures
Server-side injection — Exclaimer, CodeTwo
The signature is stamped onto email at the mail server (Microsoft 365 / Google Workspace), after you hit send. Every device is covered automatically — including iPhones — because the device never handles the signature. The trade-offs: per-user monthly pricing, IT setup, signatures appear at the very bottom of threads, and you don't see your signature while composing. Right for: compliance-driven organizations on M365/Workspace, 25+ seats.
Browser generators — WiseStamp, Newoldstamp, MySignature
You design in a web app, then copy-paste the result into each mail client yourself. Great template variety and marketing features (banners, campaigns); the structural weakness is the last mile — paste-installs into Apple Mail are fragile, and iOS paste breaks images. Subscription pricing. Right for: Gmail-first individuals and marketing-managed teams.
Native install — Autograph (ours) and Mac App Store utilities
A Mac app writes the signature directly into Apple Mail's signature store — no paste, correct HTML, hosted images, and (in Autograph's case) a QR flow that gets working images onto the iPhone. One-time pricing ($29). The limits: it's Apple-Mail-first, and there's no server-side enforcement — users own their signatures. Right for: individuals and small teams who live in Apple Mail.
If you're the Apple Mail type
Autograph is the native-install option: one click into Apple Mail, QR to your iPhone, hosted images, $29 once. Try the free version and see the architecture difference.
Download Autograph free See the templatesCommon questions
We're a Microsoft 365 company — is Exclaimer just the answer?
For centrally-enforced, compliance-grade signatures across hundreds of mailboxes: yes, server-side is the right architecture (Exclaimer or CodeTwo). The native/generator options are for people who own their own signature.
Can approaches be combined?
Yes, and it's common: the org enforces a compliance footer server-side while individuals keep a personal, well-designed signature in their client. They stack rather than conflict.
Which approach fixes the iPhone problem?
Server-side sidesteps it entirely (injection happens after send). Among client-side tools, only a clean-HTML transfer flow — like Autograph's QR — gets working images into iOS Mail's own signature field.