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Exclaimer

Email signature management for Microsoft 365, Google Workspace and Exchange, letting IT and marketing control every employee's signature centrally.

Our take: Exclaimer does one job well: it takes signatures out of employees' hands.

Best forCompany email signatures
ReviewedPricing: Free Trial
7.7 out of 105 criteria · see breakdown
Try Exclaimer14-day trial; Starter $0.90/user/mo billed annually

Exclaimer is email signature management software that applies consistent signatures, disclaimers and banners to every mailbox in Microsoft 365, Google Workspace or Exchange. It is built for companies of 10 or more users, costs $0.90 to $1.75 per user a month billed annually, and has a 14-day free trial.

The bottom line

A low-cost, IT-friendly signature manager; most teams will want Standard or Pro.

Our score

Reviewed by the Conversion Gems editorial team. Hover a facet to focus it; click to pin.Tap a facet to focus it.

What it is, and why we rate it

One line each. Open a row for detail.

What it really isA cloud service that applies centrally managed email signatures, disclaimers and banners to every mailbox in Microsoft 365, Google Workspace or Exchange.
Our takeExclaimer does one job well: it takes signatures out of employees' hands.
Per-seat prices are low and the security paperwork is strong, which matters to IT. The plan ladder is the thing to read closely. Starter gives you a single template and a single banner, Standard is where department designs and campaign scheduling start, and anything measurable (click tracking, A/B tests, CRM targeting) sits in Pro. With a 10-user floor, it is a company tool, not a personal one.
Why we rate itCentral control of every signature at a low per-seat price, with strong security certifications.
The catch10-user minimum, a very limited Starter plan and analytics only on Pro.

Best / not good for

Best for
  • Microsoft 365 or Google Workspace companies
  • Regulated teams needing disclaimers
  • Marketing banners in every email
Not good for
  • Solo users or teams under 10
  • Users who want one personal signature
Trade-offs

Friction report

Trade-offs to know before signing up.

  1. Time to value
    Short: connect the directory and publish a first template; targeting rules take longer.
  2. Scale breakpoint
    Needing more than one template or any click analytics.
  3. Walled garden
    Medium: designs live in Exclaimer, but signatures are standard HTML in sent mail.
Still a fit?
If none of these block you, try it on the official site.
Try Exclaimer

Exclaimer pricing

PlanPrice (per user per month, billed annually)Key limits and extras
Free trial$0 for 14 daysTry the product before buying
Starter$0.901 signature template, 1 brand kit, single banner, disclaimers, directory sync
Standard$1.45Unlimited templates, 3 brand kits, rotating banners, targeting rules, campaign scheduling
Pro$1.75Unlimited brands, usage and engagement dashboards, HRIS sync, Salesforce and HubSpot targeting, audit log
EnterpriseCustom quoteStandard or Pro plus a dedicated customer success manager and guided rollout

From Exclaimer's pricing page, checked 4 October 2026. Minimum 10 users; monthly billing is offered but its price is not shown.

What each Exclaimer plan includes

FeatureStarterStandardPro
Signature templates1UnlimitedUnlimited
Brand kits13Unlimited
Promotional bannersSingleMultiple, rotatingMultiple, rotating
User-editable fieldsNone2Unlimited
Campaign schedulingNoStandardAdvanced
Engagement dashboard and A/B testsNoNoYes
HRIS sync, Salesforce and HubSpotNoNoYes

From Exclaimer's plan comparison table, checked 4 October 2026.

Frequently Asked Questions

How expensive is Exclaimer?

Exclaimer costs $0.90 per user per month on Starter, $1.45 on Standard and $1.75 on Pro, billed annually, with a minimum of 10 users. Enterprise is custom-quoted. A 10-user Starter account works out to $108 a year (checked 4 October 2026).

What is Exclaimer used for?

It is used to manage email signatures centrally for a whole organization on Microsoft 365, Google Workspace or Exchange. It keeps contact details current from your directory and adds legal disclaimers and marketing banners to outgoing email.

Does Exclaimer have a free trial?

Yes. Exclaimer offers a 14-day free trial, and you can also book a free personalized demo (checked 4 October 2026).

How do I log in to Exclaimer?

Conversion Gems is a review site, not Exclaimer. Customers sign in at Exclaimer's own portal: https://portal.exclaimer.com/sign-in/ (the 'Log in' link on exclaimer.com).

Is there a minimum number of users?

Yes. Exclaimer's pricing FAQ states a minimum of ten users. Licensing counts active mailboxes that receive a signature.

Which Exclaimer plan includes analytics?

Only Pro includes the usage and engagement dashboards, A/B testing, HRIS sync, audit log and the Salesforce and HubSpot integrations.

Exclaimer alternatives

Other email signature tools from our reviews:

Showing 1–3 of 3
Sources checked October 4, 2026: Exclaimer pricing and plans, Exclaimer homepage, Exclaimer sign-in.

Conversion Gems independently reviews every tool.

Tags

#Exclaimer#EmailSignatures#Microsoft365#GoogleWorkspace

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