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Exclaimer ★ 4.5 · 1462 reviews
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Exclaimer

Email Signature Software for Microsoft 365, Exchange & Google

AiDOOS Verified SAAS Marketing
4.5 ★★★★☆ 1462 reviews · 80,000+ businesses
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Category
Marketing
Deployment
Cloud (SaaS)
API Access
Yes
AiDOOS Deploy
72 hours

About Exclaimer

Exclaimer is a leading email signature management platform that enables organizations to centrally design, control, and deploy professional email signatures across their entire workforce. It integrates seamlessly with Microsoft 365, Google Workspace, and Microsoft Exchange, allowing IT administrators to automate the application of consistent, branded signatures without relying on end-users. Key features include advanced template design, dynamic rules for different audiences, directory synchronization to keep contact details up-to-date, and compliance tools to automatically append legal disclaimers. Exclaimer supports both cloud and client-side deployment, ensuring signatures are applied on every device and email client. With robust security certifications including SOC 2 Type II, ISO 27001, GDPR, and HIPAA, it guarantees data privacy and regulatory compliance. The platform is trusted by over 80,000 businesses and 9 million email accounts worldwide. By leveraging AiDOOS, organizations can accelerate deployment, streamline adoption, and optimize the return on their email signature management investment through expert implementation and ongoing support.

Challenges It Solves

  • Inconsistent email signatures across the organization
  • Time-consuming manual signature updates
  • Compliance risks due to missing disclaimers
  • Lack of brand control in employee emails

Screenshots

Exclaimer screenshot 1
Exclaimer screenshot 1 Exclaimer screenshot 2 Exclaimer screenshot 3 Exclaimer screenshot 4 Exclaimer screenshot 5 Exclaimer screenshot 6 Exclaimer screenshot 7 Exclaimer screenshot 8

Use Cases

IT Management

IT teams use Exclaimer to centrally manage email signatures, reducing support tickets and ensuring consistency.

Marketing Branding

Marketing teams leverage Exclaimer to enforce brand consistency and run campaigns via email signatures.

Sales Enablement

Sales teams use personalized signatures with booking links and social proof to boost engagement.

Compliance and Legal

Organizations use Exclaimer to append mandatory disclaimers and meet regulatory requirements.

Pricing

Custom pricing — built for your team

Exclaimer pricing is tailored to your organisation's size, integrations, and requirements. AiDOOS generates your proposal instantly — scoped & ready in seconds.

Starter Business Enterprise
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30-day free trial available — No credit card required. Full access to all features.
💡 Pricing insight from reviewers: Exclaimer offers tiered pricing based on number of users and chosen deployment method, with a free trial available.

Key Features

Centralized Signature Management

Manage all email signatures from a single dashboard.

Directory Synchronization

Automatically sync user data from Azure AD, Google Directory, and other HRIS systems.

Dynamic Signature Rules

Apply tailored signatures based on audience, department, or region.

Campaign Management

Schedule and deploy marketing banners and promotional messages.

Compliance Disclaimers

Automatically append legal disclaimers and confidentiality notices.

Analytics Dashboard

Measure email signature performance and campaign effectiveness.

What Reviewers Say AI-synthesized from 1462 reviews

What works well

  • Centralized management simplifies signature updates across the organization.
  • Seamless integration with Microsoft 365 and Google Workspace.
  • Strong security and compliance certifications.

Common concerns

  • Pricing is not publicly listed, requiring a quote.
  • Advanced features may require a learning curve.

Reviews

1462 verified reviews
4.5
★★★★☆
out of 5 · 1462 reviews
By segment
Enterprise11%
Mid-Market89%
C
Creative Director
"Configure Once, and Exclaimer Automatically Maintains Email Signatures"
There are many ways I could express my fondness for Exclaimer, but the key point is that as long as it's connected to your Microsoft 365 account and Active Directory, once set up, it handles everything on its own. For instance, when an employee updates their job title or phone number, that change automatically reflects in their email signature. Honestly, that's precisely the kind of functionality I'd expect from software after a long day. The previews are frustrating; what you see in the editor doesn't always match what appears in an actual email, so you may need to apply it and send a test to yourself before confirming. This takes longer than necessary. Navigating the admin area can be disorienting when you only visit once a month or so. I always seem to have to find the same things again, since I don't use it enough to remember where everything is. Before Exclaimer, we had completely different signatures across the board—old logos, incorrect phone numbers, some with no signature at all—it was chaotic and looked terrible in external emails. Exclaimer centralized everything, allowing one person to make changes that automatically roll out to everyone else without needing to track them down.
I
Internal Communication Specialist
"Effortless Email Branding with Seamless Integration"
I appreciate the Exclaimer platform for its drag-and-drop designer, which offers a great user experience and lets us build professional brand templates without any coding. Its smooth integration with Microsoft 365 and Active Directory is a major advantage, as it automatically populates and updates user details like job titles and phone numbers without needing IT help. The platform also performs exceptionally well through server-side deployment on Azure, ensuring the correct signature is added to every message, even from smartphones. Additionally, the marketing features provide a clear return on investment by enabling our marketing team to insert trackable rotating promotional banners into daily emails, effectively turning routine correspondence into a lead generation channel. Support and onboarding were smooth, with initial setup taking under an hour, and comprehensive documentation made deployment frictionless. Managing signatures for our 50 employees is easy and automatic with Exclaimer, cutting errors and saving time. The system could benefit from more advanced conditional logic in the template designer. Currently, to show or hide specific fields based on Active Directory attributes, we often have to create and maintain separate templates rather than simply toggling attributes. Exclaimer solves the problem of inconsistent email footers and automates contact detail updates. I find the integration with Microsoft 365 seamless, making data updates automatic, and it simplifies managing email signatures for all 50 employees, saving time and reducing errors.
C
CEO
"Set It Once, Reach Everyone: Convenient Banner Scheduling for Seasonal Campaigns"
Prior to this, we had to bother employees every time they wanted a change. We set it up once, and it applies to all staff. Banner scheduling is also handy; you can set start and end dates for seasonal campaigns. When the season ends, it automatically reverts to the standard banner. In my experience, the backend seems designed by someone who enjoys browsing long lists. There's no visual way to see which banners are used where. Additionally, when assigning banners and discovering some users didn't get the right one, you have to search the system again to find out why. Before this product, emails looked however each employee wanted. Now, every employee's email appears consistent (as configured), yet each individual can still customize their own settings independently. Beyond making signatures consistently presentable, this product lets us use email as a form of advertising.
S
Sales Director
"Low-Effort Email Signatures with Immediate Active Directory Updates"
I appreciate that I don't have to go to each computer to distribute an email signature to every employee. Changes like title or phone number are instant because they're pulled from Active Directory. It's very low-maintenance, and I'm pleased it performed flawlessly during our recent rebrand. The drag-and-drop editor can be frustrating when trying to align images and text boxes perfectly. Also, if you upload a standard photo as a headshot, it ends up looking huge and distorted unless you reduce the original file size first. Exclaimer prevents employees from using outdated logos and unattractive fonts. It has standardized both our disclaimer and branding across all Outlook versions (desktop and mobile), so we present a professional image. This also means marketing can run banner campaigns without having to submit ticket requests for emails.
I
IT System Administrator
"Efficient Email Signature Management with Exclaimer Cloud"
Exclaimer Cloud has proven to be an indispensable tool for managing automated email signatures across our organization. It has greatly streamlined the onboarding process by removing the need to manually configure email signatures for each new user, leading to better efficiency and consistency. Overall, it's a reliable, easy-to-use platform that offers great value and comes highly recommended. I do wish the platform allowed for at least two owners to reduce the frequency of contacting customer support. In our workplace, people resign often, and when the sole owner leaves, it can lead to access disruptions and negatively impact the overall experience. Email signature management eliminates the need for manual signature setup for large numbers of users, saving time and effort, and making daily work more convenient since it's tied to our Microsoft service.
H
Head of Marketing
"Set-and-Forget Centralization of Email Signatures with Exclaimer"
Set-it-and-forget-it centralization. Exclaimer removes the hassle of company-wide email signatures by automatically fetching directory data, enforcing rules server-side across all devices, and allowing us to manage formatting and promotional banners in one place. The primary downsides are occasional synchronization delays between user directories and Exclaimer's servers, and the varying image sizing across email clients if you don't manually constrain pixel dimensions. Advanced routing rules (like properly handling aliases) can also be slightly confusing to set up initially. Problems Addressed: Inconsistent branding, outdated contact info, manual signature setup across multiple devices, and a lack of centralized control over corporate email disclosures. How It Helps Me: It fully automates signature deployment. We configure rules and templates once, and Exclaimer handles the rest—pulling real-time employee data from our directory so signatures are always accurate, properly formatted, and compliant.
P
Project Coordinator & Quality Analyst
"Drag-and-Drop Signatures That Save Time, with Smooth Microsoft 365 Integration"
The drag-and-drop signature builder has been quite effective. No more going from desk to desk to fix font problems. It also integrates with Microsoft 365. Glad it rarely crashes, making things easier for me. Also, I've been lounging on the couch after work, so I'm doing this quickly on my laptop because I'm dozing off. Sometimes, it takes several hours for new signatures to appear for everyone after I click save. The Outlook add-in occasionally freezes or spins; then customers call and complain to me about it. Support is located in a time zone that makes responses slow. I'm too exhausted to deal with sluggish tech support. Plus, the Virtual Business Card template options were quite limited. It stops people from generating poor-quality email signatures. I just include the company logo and contact info in the signature for all employees through my account. We also add event banners at the bottom. No training required for anyone.
O
Office Administrator
"Centralized Email Signatures with Smooth Microsoft 365 Integration"
It functions effectively with Microsoft 365 and supports automatic updates, ensuring everything remains current. Additionally, it offers marketing possibilities and fosters consistent branding throughout the organization. In summary, it provides centralized management of email signatures, simplifying the maintenance of a unified look and message. However, there are some constraints with signature design, and advanced configurations come with a learning curve. I've also encountered Outlook synchronization issues. Overall, the user interface could be more intuitive and user-friendly. Exclaimer addresses the issue of managing email signatures across an organization, helping maintain a professional and consistent brand image. It saves administrative and IT time through centralization, reduces the risk of missing legal disclaimers or non-compliance, and ensures employee contact details remain accurate and current. It also opens up additional avenues to promote products, services, events, or company news through regular emails.
D
Director of Information Technology
"Robust and User-Friendly Email Signatures with Seamless Microsoft 365 Integration"
Their design team creates your signature for you, then you're free to modify their design or craft your own. The drag-and-drop interface is straightforward yet highly capable. The rules accommodate every conceivable scenario, allowing different signatures for various users or groups. You can sense Exclaimer's experience—they've anticipated all needs. Support has been excellent, and onboarding was straightforward. It integrates with Microsoft 365, which was our primary requirement. Changes happen quickly, almost instantly. Pricing is very reasonable for what you get. Locating the specific field you need can be a bit challenging. I had trouble with, interestingly, including users' middle initials. Eventually I figured it out, but it wasn't as intuitive as expected. Now, we have consistent branding through Exclaimer's policy-enforced Outlook signatures. It works across Outlook on the web, desktop clients, and mobile (Android/iOS). It looks professional and helps deliver a uniform message both internally and externally.
H
Head of IT Infrastructure Department
"Straightforward Signature Management That Cuts Down on Time"
From the moment you sign in, the platform is easy to navigate, and even those without technical expertise can use it without much difficulty. A key benefit is how swiftly modifications are implemented. Whether we're changing a company-wide banner, tweaking a signature layout, or prepping updates before a campaign, adjustments are rolled out quickly and dependably to everyone, with no lag or syncing problems. The signature editor is particularly noteworthy. It's designed to be user-friendly, using a clean drag-and-drop interface that allows for creating polished, brand-consistent signatures without any design or coding knowledge. Adding logos, social icons, banners, or legal text takes just a few clicks, and the instant preview ensures you see the final look before going live. One area we'd like to see improved is more sophisticated conditional logic for signature fields—specifically, the capability to show or hide elements based on dynamic Active Directory attributes. For instance, automatically displaying or concealing a field based on department, location, job title, or a custom AD property would simplify managing complex, multi-department signature rules without needing separate templates for each scenario. Currently, achieving that level of customization demands more manual template handling than we'd prefer, which adds administrative overhead as our organization expands. Exclaimer resolves the challenge of keeping uniform, professional, current email signatures throughout the company. Previously, we had to contact every staff member individually for any change—a new logo, rebrand, legal update, or marketing banner—which was slow and often resulted in inconsistencies, with different employees using varied versions of the signature.

Reviewer Demographics

Top Industries

No data available

Company Size

No data available

Enterprise Readiness

SOC 2 Type II
ISO/IEC 27001 & 27018
GDPR
HIPAA
SecurityScorecard

Identity & Access

SSO Microsoft Entra ID (Azure AD), Google Workspace, Okta
RBAC Role-based access controls allow admins to assign specific access rights based on user roles.
Audit Logs

Data Security

At restAES-256
In transitTLS 1.2+
Key mgmtVendor-managed

SLA & Availability

Uptime SLA99.9%
RPO
RTO
Pen test

Compliance & Portability

Data residencyMicrosoft Azure datacenters in local regions (US, EU, UK, etc.)
Data export
Right to erasure

Integrations

Microsoft 365

Centralize and automate email signatures across Microsoft 365.

Native < 1 hour ⇄ Bi-directional ⚡ AiDOOS Pre-wired

Google Workspace

Centralize and automate email signatures across Google Workspace.

Native < 1 hour ⇄ Bi-directional ⚡ AiDOOS Pre-wired

Microsoft Exchange

Manage email signatures across on-premises Exchange and hybrid environments in one place.

Native 2-4 hours ⇄ Bi-directional

Salesforce

Use Salesforce data to target email signatures and banners to specific audiences.

Third_Party 2-4 hours ⚡ AiDOOS Pre-wired

HubSpot

Use HubSpot lists to target email signatures and banners to the right audiences.

Third_Party 2-4 hours ⚡ AiDOOS Pre-wired

LinkedIn

Display the latest LinkedIn posts in email signatures to extend reach and drive engagement.

Third_Party < 1 hour

Calendly

Add Calendly links to email signatures so recipients can schedule meetings easily.

Third_Party < 1 hour

Workday

Sync employee details from Workday to keep email signatures accurate and up to date automatically.

Third_Party 2-4 hours ⇄ Bi-directional

Governance & Compliance

EU AI Act

No data available

Data Processing Agreement

Data Processing Agreement DPA available

Sub-processors

No data available

Right to Erasure

No data available

Change Notifications

No data available

NIST AI RMF

No data available

AiDOOS Managed Deployment

Deploy Exclaimer in 72 hours

AiDOOS handles setup, CRM integration, SSO config, and user provisioning. Your team goes live — not your IT department.

12
Deployments
94%
Adoption rate
4.8/5
Post-deploy sat.
1-2 weeks
Time to value

Prerequisites

  • Microsoft 365 or Google Workspace administrator access
  • Valid Exclaimer subscription (free trial or paid)
  • A supported email platform (Outlook, Gmail, etc.)
  • Directory sync configured (Entra ID, Google Workspace, or Okta)

Configuration Options

  • Cloud deployment (server-side)
  • Device deployment (client-side)
  • Hybrid deployment (both)
  • Custom signature templates and branding

How Exclaimer Compares

Product AI & Analytics Ease of Use Enterprise Features Pricing Integrations Mobile Experience Quick Setup Customer Support Rating Price/mo
Exclaimer This product
Good Excellent Excellent Good Excellent Fair Excellent Excellent ★ 4.5 $Custom/user
CodeTwo Email Signatures
Fair Good Good Good Good Fair Good Good $Custom/user
Xink
Fair Good Fair Good Good Fair Good Good $Custom/user
Sigstr (Now Terminus)
Good Good Good Fair Good Fair Good Good $Custom/user
Virtual Delivery Center · A new delivery category

A Virtual Delivery Center for Exclaimer

Pre-vetted experts and AI agents in the loop, assembled as a delivery pod. Pay in Delivery Units — universal pricing across roles, seniority, and tech stacks. No hiring, no contracting, no procurement cycle.

  • Plans from $2,000 — Starter Pack, 10 Delivery Units, 90 days
  • Refundable on unused Delivery Units, anytime — no questions asked
  • Re-delivery guarantee on acceptance miss
  • Pre-flight delivery sizing — you see the plan before you commit

How a Virtual Delivery Center delivers Exclaimer

Outcome-based delivery via AiDOOS’s VDC model.  Why VDC vs traditional consulting? →

Outcome-Based

Pay for results, not hours

Milestone-Driven

Clear deliverables at each phase

Expert Network

Access to certified specialists

Implementation Timeline

1
Discover
Requirements & assessment
2
Integrate
Setup & data migration
3
Validate
Testing & security audit
4
Rollout
Deployment & training
5
Optimize
Performance tuning
Schedule a Meeting

Frequently Asked Questions

What is Exclaimer and how does it work?
Exclaimer is a leading email signature management platform that centrally designs, controls, and deploys professional signatures across every email sent from your organization. It integrates with Microsoft 365 and Google Workspace to automatically apply consistent signatures, including logos, contact details, legal disclaimers, and marketing banners. With AiDOOS, you can deploy Exclaimer in about 72 hours and get full integration support.
Does Exclaimer support both Microsoft 365 and Google Workspace?
Yes, Exclaimer supports both Microsoft 365 and Google Workspace, as well as on-premises Exchange. It offers cloud (server-side) and device (client-side) deployment options for each platform.
Can I get a free trial of Exclaimer?
Yes, Exclaimer offers a free trial. You can start a free trial directly from their website or through AiDOOS deployment service.
Is Exclaimer SOC 2 compliant?
Yes, Exclaimer is SOC 2 Type II certified, and also holds ISO/IEC 27001 and 27018 certifications, GDPR, HIPAA, and other security compliances.
Can Exclaimer integrate with Salesforce and HubSpot?
Yes, Exclaimer integrates with Salesforce and HubSpot to use CRM data for targeting signatures and banners to specific audiences. These integrations are available natively.
What is the typical time to deploy Exclaimer with AiDOOS?
AiDOOS can deploy Exclaimer within 72 hours, including integration setup and configuration. The time to value is typically 1-2 weeks as teams get familiar with the platform.

Quick Stats

★ 4.5
Rating
12
Deployments
72 hours
Live in
99.9%
Uptime SLA
Deployment Complexity
Easy (2/5)
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Vendor

Exclaimer
Founded 2001 · 201-500 employees · Farnborough, England
Verified Vendor

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