MailTail vs Exclaimer
Simple Outlook signatures without the enterprise complexity or price
Feature Comparison
| Feature |  MailTail | |
|---|---|---|
| Outlook Add-in (Desktop & Web) | ✓ | ✓ |
| Microsoft 365 / Entra ID | ✓ | ✓ |
| Visual Signature Editor | ✓ | ✓ |
| Dynamic User Data | ✓ | ✓ |
| User & Group Assignments | ✓ | ✓ |
| Free Trial | 14 days | 14 days |
| Setup Time | Minutes | Hours |
| Price per user/month | £0.57 | £0.95 |
Pricing Comparison
Based on 100 users
Exclaimer
£1,140 per year
- ✓ Outlook signatures
- ✓ Entra ID integration
- ✓ Visual editor
- ✓ Group assignments
MailTail
£684 per year
- ✓ Outlook signatures
- ✓ Entra ID integration
- ✓ Visual editor
- ✓ Group assignments
- ✓ Setup in minutes
- ✓ Responsive human support
Why Teams Switch from Exclaimer
40% Lower Cost
Exclaimer Standard costs £0.95/user. Their £0.70 Starter only allows one template. MailTail is £0.57 with unlimited templates.
Simple by Design
No complex server-side rules or enterprise features you'll never use. Just signatures that work.
Quick Setup
Deploy the Outlook add-in and you're done. No transport rules, no server configuration.
Human Support
Talk to the people who build the product. No ticket queues or scripts.
How Exclaimer works
Exclaimer uses server-side signature injection. Your emails are routed through Exclaimer's servers where signatures are added before being delivered to the recipient. This means your email content passes through a third-party system before reaching its destination.
MailTail takes a different approach. Our Outlook add-in runs entirely client-side, applying signatures directly in the compose window. Your emails are never routed through our servers. For organisations with data sovereignty or compliance requirements, this is a significant difference.
Exclaimer pricing breakdown
Exclaimer offers multiple pricing tiers. Their Starter plan at £0.70/user/month only allows a single signature template, which most teams will outgrow quickly. The Standard plan at £0.95/user/month unlocks multiple templates and additional features. Enterprise pricing requires contacting their sales team.
MailTail is £0.57/user/month. One plan, all features included. No tiers to navigate, no features locked behind upgrades, and no sales calls required. For a team of 50, that saves over £228 per year compared to Exclaimer Standard.
Setup and deployment
Exclaimer requires configuring mail flow connectors in Microsoft 365 to route emails through their service. This involves changes to your Exchange Online transport rules, DNS configuration, and connector setup. For IT teams unfamiliar with mail flow, this can take hours and carries risk if misconfigured.
MailTail deploys as an Outlook add-in through the Microsoft 365 admin center. There are no transport rules to configure, no DNS changes, and no mail flow modifications. Deploy it, assign signatures, and you are done. Most teams are fully set up in under 15 minutes.
Who is Exclaimer built for?
Exclaimer is built for large enterprises with dedicated IT teams and complex signature requirements across multiple platforms. If you need signatures across Gmail, Outlook, and other email clients simultaneously, Exclaimer's server-side approach handles that.
MailTail is built for Microsoft 365 teams who want simple, reliable Outlook signatures without the overhead. If your organisation runs on Microsoft 365 and you want signatures working in minutes rather than hours, MailTail is the simpler choice.
Switch in Under 30 Minutes
Sign up for MailTail
Start your 14-day free trial.
Import your signatures
Copy your existing HTML signatures or create new ones in our editor.
Assign to users & groups
Use your existing Entra ID groups - no manual user management.
Deploy the Outlook add-in
One-click deployment via Microsoft 365 admin center.
Cancel Exclaimer
Once you're happy, cancel your Exclaimer subscription.
Ready to Switch?
Try MailTail free for 14 days. Keep using Exclaimer during your trial - switch when you're ready.
Start Free TrialSignatures applied instantly · Cancel anytime