Exclaimer is a large cloud signature service with several plans (Starter, Standard, Pro) that supports Microsoft 365, Google Workspace and Exchange. SignetMail is an alternative for companies with up to 50 users who don't want to pay per seat and who want the server and data on their side. If you need integrations (HRIS, Salesforce, HubSpot), an audit log and an established vendor, Exclaimer is the more mature choice.
Disclosure: this comparison is written by SignetMail. Information on Exclaimer comes from their public pages as of 15 October 2026. Prices and features change, so check them with the vendor.
How do SignetMail and Exclaimer differ?
| SignetMail | Exclaimer | |
|---|---|---|
| Price | €0 up to 50 active users, every feature. | Starter $0.90, Standard $1.45, Pro $1.75 per user per month (annual billing), minimum 10 users. |
| Free | Permanently up to 50 users. | 14-day trial, no card. |
| Features | Everything in every install. | Three plans; targeting rules from Standard, audit log from Pro. Integrations (HRIS, Salesforce, HubSpot) in higher plans. |
| Platforms | Microsoft 365 and Google Workspace in the same portal. | Microsoft 365, Google Workspace and Exchange. |
| Where it runs | On your own server (Docker, Windows) or hosted on request. | Cloud service. |
| Support | E-mail, with no guaranteed response time. | 24/5. |
What does it cost per year?
For 30 users, Exclaimer Starter comes to about $324 a year (30 × 0.90 × 12), Standard to about $522 and Pro to about $630. Prices are in dollars, excluding VAT. SignetMail is free at 30 users. For an exact figure at your user count, use the comparison page.
When is SignetMail a good Exclaimer alternative?
- You have up to 50 users and don't want to pay per seat.
- Data must stay with you. You install SignetMail on your own server; the directory and signatures stay in your environment.
- You need targeting rules from day one. In SignetMail every feature is in every install, while some Exclaimer features are tied to a higher plan.
- You want an EU vendor you can reach in your own time zone.
When should you stay with Exclaimer?
- If you need integrations with tools such as Salesforce, HubSpot or an HRIS.
- If you need an audit log and 24/5 support.
- If you want a product with a long history and don't want to maintain anything (SignetMail is a young product).
How do you switch from Exclaimer to SignetMail?
- Install SignetMail with Docker or the Windows installer and connect Entra ID or Google Workspace.
- Bring your template over. Import the HTML of your current signature and replace the details with placeholders for name, title and phone.
- Set up rules for departments or groups, as you had them in Exclaimer.
- Test with a pilot group. Assign the Outlook add-in to a few people first and check their signatures.
- Turn off Exclaimer. Remove their rule or add-in so the signature is not added twice.
Frequently asked questions
Is SignetMail a free alternative to Exclaimer?
For up to 50 active users, yes, with every feature during the public beta. Above 50 users you need a license on request.
Does SignetMail support Google Workspace like Exclaimer does?
Yes. The signature is written to each user's Gmail through the Gmail API. See Email signature software for Google Workspace.
Can I use campaign banners in SignetMail?
Yes. You add a banner as a campaign, choose who gets it and when it comes down. See Email signature banners. For a comparison with a similarly priced tool, see A CodeTwo alternative.
Sources: Exclaimer: Pricing and Plans · exclaimer.com. Names and trademarks belong to their owners; SignetMail is not affiliated with them. If you spot an error, write to info@signetmail.si.
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Free during the public beta, with every feature and no card. We help pilot companies with the setup.