Quick Answer
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Mimecast uses custom pricing as of March 2026 with 3 plans available. Contact Mimecast directly for a personalized quote. The median contract is $31,907/year based on 79 verified purchases.

Use the interactive pricing calculator to estimate your exact cost based on team size and requirements.

  • Free tier: No free tier available

Mimecast offers 3 pricing tiers: Critical, Advanced, Premium. The Advanced plan is enhanced security with dlp.

Compared to other email security software, Mimecast is positioned at the budget-friendly price point.

  • Median contract: $31,907/yr from 79 purchases
  • Average negotiated discount: 12%
  • 4 documented hidden costs beyond list price
  • Contracts auto-renew — 90 days before renewal

How much does Mimecast cost?

Mimecast uses custom pricing across 3 plans. Contact Mimecast directly for a personalized quote. Plans include Critical (custom pricing), Advanced (custom pricing), Premium (custom pricing).

Mimecast Pricing Overview

Mimecast uses custom pricing — contact their sales team for a quote. The Critical plan requires contacting sales for a custom quote and is designed for foundational email security. The Advanced plan requires contacting sales for a custom quote and is designed for enhanced security with dlp. The Premium plan requires contacting sales for a custom quote and is designed for enterprise-grade protection across platforms.

Mimecast contracts auto-renew, with a 1 year typical minimum commitment, requiring 90 days before renewal notice to cancel.

The median Mimecast customer pays $31,907/year based on 79 verified purchases, with an average 12% discount available through negotiation.

There are at least 4 documented hidden costs beyond Mimecast's list price, including implementation, training, and add-on fees.

This pricing was last verified in February 4, 2026 from 4 independent sources.

Mimecast is a comprehensive email security platform offering protection against phishing, ransomware, business email compromise, and data loss. Serving thousands of organizations globally, Mimecast provides tiered solutions from basic threat filtering to advanced AI-powered detection with archiving and compliance features.

As of August 2025, Mimecast introduced new email security plans with custom pricing based on organization size and selected features. Plans range from Critical (core anti-phishing and spam filtering) to Premium (full suite with archiving, DLP, and security training). Pricing estimates suggest $5-15 per user/month depending on tier and deployment scale.

Mimecast uses a subscription-based model requiring custom quotes. While the platform offers robust email security and unified management, customers should budget for potential renewal increases, data export fees if migrating, and bundled features in premium tiers that may exceed actual needs.

How Mimecast Pricing Compares

Compare Mimecast pricing against top alternatives in Email Security.

All Mimecast Plans & Pricing

Plan Monthly Annual Best For
Critical Contact Sales Contact Sales Foundational email security
Advanced Contact Sales Contact Sales Enhanced security with DLP
Premium Contact Sales Contact Sales Enterprise-grade protection across platforms
View all features by plan

Critical

  • AI-powered BEC protection
  • Social graphing
  • URL analysis
  • QR code protection
  • Attachment sandboxing
  • Spam filtering

Advanced

  • All Critical features
  • Data protection capabilities

Premium

  • All Advanced features
  • Comprehensive collaboration tool coverage

Compare Mimecast vs Alternatives

Before committing to Mimecast, compare pricing with these 3 alternatives in the same category.

All Mimecast alternatives & migration guides

What Companies Actually Pay for Mimecast

The median Mimecast buyer pays $31,907/year based on 79 verified purchase transactions, with an average 12% savings through negotiation.

What companies actually pay $31,907/yr Median across 79 purchases
12% avg. savings
with negotiation
Review scores
Trustpilot 1.6/5 (23)
Top pricing complaints
Blocks legitimate emails from trusted senders repeatedlyPoor customer support - long response times, prefer email over phoneDifficult to use - laborious approval/release processPrice increases at renewal without transparency
Source: Vendr buyer database — median calculated from 79 real purchase transactions. Savings figure reflects negotiated discounts reported by buyers.

Mimecast Year 1 Total Cost by Company Size

Real deployment costs including licenses, implementation, training, and admin — not just the sticker price.

Small Business (50 users) Year 1 total

Entry-level Critical plan with anti-phishing, spam filtering, and email continuity. Note: Phone support now requires paid upgrade for SMBs.

Mid-Size Company (250 users) Year 1 total

Advanced plan with impersonation protection, targeted threat protection, and enhanced AI detection—suitable for organizations facing sophisticated attacks.

Enterprise (1,000 users) Year 1 total

Premium plan with full email archiving, DLP, security awareness training, and advanced analytics. Pricing includes bundled features; negotiate multi-year agreements carefully due to built-in price escalators.

How Mimecast Pricing Compares

Software Starting Price Top Price
Mimecast Custom Custom
Abnormal Security $3/user/month $8/user/month
Barracuda Email Protection $5/user/month $5/user/month
Microsoft Defender for Office 365 $2/user/month $5/user/month
Proofpoint $2/user/month $15/user/month

4 Mimecast Hidden Costs Beyond the List Price

Beyond the listed price, Mimecast has at least 4 documented hidden costs that can significantly increase total cost of ownership.

Watch for 4 hidden costs
  • Mid-Contract True-Up Charges 5-15% of license costs
    medium 1 source
    Reddit "They will have their pound of flesh, they are not very flexible with pricing. The price on the quote is what you pay and they can and will true you up mid contract if they detect you over your licence count."
  • Proofpoint Integration API Dependency $3,000-$8,000
    medium 1 source
    Reddit "I believe this threat intel dashboard is the module that includes a purchase dependency for the API that Proofpoint uses to share the latest IOCs with Crowdstrike (obviously neither vendor mentions this in presales)."
  • Support Tier Costs 10-20% of license costs
    medium 2 sources
    Reddit "Mimecast email support is useless, you need to call. I find most of the people I've gotten on the phone are decently competent. I have Gold support (consider it a requirement to get Gold support) so hold times are minimal."
    Reddit "Be careful in the pricing...they like to tack on more support costs than you really need."
  • Implementation and Setup Costs $2,000-$5,000
    low 1 source
    Vendr "We were able to waive our set-up costs for the Aware software by positioning an expedited purchase decision in alignment with the sales team's end of year."
Tip

Ask your Mimecast sales rep about these costs upfront. Getting them in writing before signing can save you from surprise charges later.

Full hidden costs breakdown →

Intelligence sourced from 3 independent sources
Reddit User discussions Vendr Verified buyer transactions Trustpilot Consumer reviews
Key claims include inline source attribution. Data verified against multiple independent sources. 17 source citations total.

Mimecast Contract Terms

Mimecast contracts auto-renew and cannot be downgraded mid-term. Changes require 90 days before renewal. These terms are sourced from verified buyer experiences.

Contract Terms
Auto-Renewal Yes
Cancellation Notice 90 days before renewal
Minimum Commitment 1 year typical
Mid-Term Downgrade Not allowed
Payment Terms Annual upfront typical
Price Escalation 5-8% annual uplift standard at renewal. Multi-year agreements often include built-in price increases for each year. Users report 40% increases at some renewals.
Note

Mimecast's true-up policy only works in one direction - they charge you if you exceed licenses but don't credit back if headcount decreases

Based on 4 verified sources

How to Negotiate Mimecast Pricing

Mimecast contracts are negotiable — buyers save an average of 12% off list price. These 7 tactics are sourced from real buyer experiences and procurement specialists.

Negotiation Playbook 7 tactics
Leverage Service Issues for Flat Renewal high success

Document all service issues, outages, and support failures throughout your contract term. At renewal, use this documented history to negotiate a flat renewal instead of accepting uplifts. Getting sales leadership involved on a call can help achieve this.

Vendr community insights
Push Back on Multi-Year Price Escalation high success

Mimecast typically builds price increases into multi-year agreements (5-8% per year). Push back on this by stressing your service issues and growth. They can keep costs flat for the entire term if pressed.

Vendr community insights
Cite Budget Constraints and Competition high success

State a firm budget limit and lightly suggest that competitors (Abnormal Security, Proofpoint) will need to be evaluated if the price can't be met. One buyer reduced uplift from 8% to 2.5% using this approach.

Vendr community insights
Switch Bundles to Reduce Cost medium success

If you have tool overlap with other security vendors, use this as leverage to switch to a different (but similar) bundle. One buyer lowered monthly price by 43% by switching bundles when they had overlap with Abnormal Security.

Vendr community insights
Negotiate Through Volume Resellers medium success

Purchase through CDW or similar large resellers to leverage their volume pricing. One buyer reported saving 15% on Mimecast through CDW's volume discounts.

Reddit user experience
Waive Setup Costs with Expedited Purchase medium success

Position an expedited purchase decision aligned with the sales team's quarter-end or year-end to waive setup and implementation costs entirely.

Vendr community insights
Negotiate Before 90-Day Cancellation Window medium success

Mimecast requires 90 days notice before renewal for cancellation. Start negotiation talks 120+ days before renewal to have leverage and avoid being locked into auto-renewal.

Vendr community insights

Full negotiation guide →

Mimecast Pricing FAQ

01 How much does Mimecast cost per user?

Mimecast uses custom pricing based on organization size and features. Estimates suggest $5-15 per user/month depending on the tier (Critical, Advanced, or Premium). Small businesses typically pay toward the lower end, while enterprises with full archiving and DLP pay more. New plans introduced in August 2025 require contacting sales for quotes.

02 Does Mimecast offer a free trial?

Mimecast does not offer a free plan, but free trials are available upon request. Contact Mimecast sales to arrange a trial period. The trial typically includes access to email security features, threat detection, and reporting to evaluate the platform before committing to a subscription.

03 What are the hidden costs of Mimecast?

Major hidden costs include data export fees when migrating away from Mimecast (can double migration costs), premium phone support charges for SMBs, bundled features like security awareness training in premium tiers (charged even if unused), and significant renewal price increases (25%+ reported). Migration throttling of ~1TB/week can also delay projects and increase costs.

04 How does Mimecast compare to Proofpoint?

Both offer comprehensive email security with similar features (anti-phishing, archiving, DLP). Mimecast ($5-15/user/month) uses custom pricing with bundled tiers, while Proofpoint Essentials ($2-6/user/month) has transparent pricing for SMBs. Proofpoint is often more affordable with modular add-ons. Mimecast is known for steep renewal increases and data export fees, while Proofpoint offers more predictable costs.

05 Why are Mimecast customers switching away?

Common reasons include steep renewal price increases (25%+ annually), expensive data export fees when migrating, vendor lock-in with slow migration throttling (~1TB/week), and bundled features that force customers to pay for unused services like training. Some customers also report less transparent pricing since 2021 and challenges with support accessibility.

06 Is Mimecast good for small businesses?

Mimecast can work for small businesses needing comprehensive email security, but pricing may be less competitive than alternatives like Proofpoint Essentials or Barracuda. Mimecast now charges SMBs for phone support (previously free), and custom pricing makes cost comparison difficult. Consider simpler, more transparent solutions if you don't need all premium features.

07 Does Mimecast pricing increase at renewal?

Yes. Mimecast typically imposes 5-8% annual uplifts at renewal, and some users report increases as high as 40%. Multi-year agreements often include built-in price increases for each year. However, buyers can negotiate these down to 2.5% or achieve flat renewals by citing budget constraints, service issues, and competitive alternatives.

08 What happens if my user count decreases during the contract?

Mimecast's true-up policy only works in one direction. They will charge you mid-contract if you exceed your license count, but you don't get credited back if your headcount falls. This asymmetric policy can result in paying for unused licenses.

09 Can I cancel Mimecast mid-contract?

Mimecast requires 90 days notice before your renewal date to cancel. The contract includes automatic renewal, and this cancellation window can be difficult to adjust. Plan ahead and start cancellation or renegotiation discussions at least 120 days before renewal.

10 Does Mimecast offer discounts for nonprofits or education?

Mimecast does have pricing for non-profit, government, and other non-business organizations, but specific discount percentages are not publicly available. Contact a sales representative directly to inquire about special pricing for your organization type.

Is this pricing incorrect? — we verify and update within 24 hours.