CISO Tribune

Vendor comparison · 2 companies

Mimecast vs Sendmarc

Mimecast describes the problem it addresses as human risk. Sendmarc sells a DMARC platform that lets customers manage any number of domains and secures a brand's domain with DMARC protection. CISO Tribune files both under Email authentication and DMARC. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • Mimecast
  • Sendmarc
Mimecast vs Sendmarc: Products, Customers and Funding Compared
MimecastMimecast describes the problem it addresses as human risk.mimecast.comSendmarcSendmarc sells a DMARC platform that lets customers manage any number of domains and secures a brand's domain with DMARC protection.sendmarc.com
What it sells
  • Managed Threat Response[8]24x7 analyst response to every user-reported email.
  • Lookalike Domain Defense[3]A solution aimed at stopping cybercriminals from copycatting a domain name.
  • Breach Detection[3]A solution that monitors various sources, including the dark web, for leaked systems or user credentials.
Categories
Headquarters
London, United Kingdom[1]Not stated on its pages
Founded
2003[1][6]Not stated on its pages
Ownership and funding
Owned by Permira since 2022[3][4][8][13][14][19]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • June 25, 2026Mimecast appointed Ranjan Singh as its Chief Executive Officer.[12]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: listed, seen November 10, 2026[11]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Mimecast sells mainly to organizations that want to reduce risk caused by human actions across email, chat and file-sharing. Its pages say its plans are designed for businesses of all sizes, and its customer stories cover both small and medium businesses and enterprises. Mimecast says Incydr offers FedRAMP-authorized solutions suited to government agencies and contractors. It describes Cloud Archive as helping IT, Legal, Compliance and HR teams respond to legal inquiries or compliance audits. Its pages also point to security teams that handle user-reported email and insider risk.From its own pages, Sendmarc sells mainly to businesses of all sizes, including enterprises, governments, and SMEs. Sendmarc has a tailored solution for MSPs, OEMs, and partners. Larger or more complex organizations are offered a fully managed and guided implementation. Sendmarc names multi-nationals and institutions with complex change-controls and regulated security compliance standards as buyers. The customers described on its pages include a non-profit organization, an academic institution, a real estate company, and a managed service provider. Sendmarc is built for complex environments with multiple domains and third-party platforms.
Last verified
September 27, 2026October 30, 2026

Where they overlap

  • Mimecast and Sendmarc are both filed under Email authentication and DMARC.

Where they differ, field by field

  • Mimecast's primary category is Email security; Sendmarc's is Email authentication and DMARC.
  • Mimecast is also filed under Collaboration app security and Insider risk management.
  • Mimecast lists Managed Threat Response. Sendmarc lists Lookalike Domain Defense and Breach Detection.
  • Mimecast is headquartered in London, United Kingdom.
  • Mimecast was founded in 2003.
  • Mimecast is owned by Permira, since 2022.

What it sells: Mimecast

What Managed Threat Response does[8]
Mimecast Managed Threat Response has analysts investigate, classify and remediate each email users report. It works with the existing report button.

Questions about Mimecast and Sendmarc

What do Mimecast and Sendmarc sell?
Mimecast sells Managed Threat Response. Sendmarc sells Lookalike Domain Defense and Breach Detection.
Are Mimecast and Sendmarc in the same category?
They share Email authentication and DMARC. Mimecast's primary category is Email security and Sendmarc's is Email authentication and DMARC.
Where are Mimecast and Sendmarc headquartered?
Mimecast is headquartered in London, United Kingdom.
When were Mimecast and Sendmarc founded?
Mimecast was founded in 2003.
Who owns Mimecast and Sendmarc?
Mimecast is owned by Permira, since 2022.
Who are Mimecast and Sendmarc sold to?
From its own pages, Mimecast sells mainly to organizations that want to reduce risk caused by human actions across email, chat and file-sharing. From its own pages, Sendmarc sells mainly to businesses of all sizes, including enterprises, governments, and SMEs.
What have Mimecast and Sendmarc announced recently?
June 25, 2026: Mimecast appointed Ranjan Singh as its Chief Executive Officer.

About Mimecast

Mimecast describes the problem it addresses as human risk. Its solutions page says Mimecast offers a unified and dynamic solution to rapidly identify and reduce risk caused by human actions and to empower users to make smarter security decisions. Mimecast says a unified platform with integrated protection across email, chat and file-sharing is essential to safeguard an organization's collaboration.[2][5][15]

For email and collaboration threat protection, Mimecast says its solution blocks phishing, BEC, impersonation, malware and collaboration-based attacks using adaptive AI across email, Teams, Slack and more.[2][11][16]

Mimecast Managed Threat Response is a managed service for emails that users report. Mimecast says each report is analyst-investigated, classified and remediated 24x7. Mimecast says the service works with the existing report button and that API outputs route to a SIEM, SOAR or case management platform.

For insider risk, Mimecast Incydr is the data protection product. Mimecast says Incydr brings email, endpoint, cloud, browser and agentic risk surfaces into one view, scored for risk and tied back to people. Mimecast says Incydr offers adaptive controls that range from in-the-moment education to allow-with-justification to targeted blocking. The Agent Risk Center, part of Mimecast Incydr, discovers the agents operating in an environment, classifies their AI activity against the customer's rules, and applies controls to reduce data exposure. Mimecast says Incydr offers data residency options and FedRAMP-authorized solutions, and that an ultra-lightweight agent supports Windows, Mac and Linux.[2][9][18]

For security behavior management, Mimecast Engage delivers behavior-driven interventions powered by the Human Risk Command Center. Mimecast says Engage can deliver nudges via email, Slack or Teams, and that it offers 200+ training modules available in 27 languages. Mimecast says Engage connects with security tools such as CrowdStrike, Okta and Netskope.[2][7]

For archiving, Mimecast Cloud Archive provides self-service tools to collect, discover, preserve and review collaboration data. Mimecast says Supervision supports review, escalation, export and reporting, Sync & Recover protects files, folders, contacts, tasks and notes, and Archive for MS Teams keeps encrypted copies of Teams data.[9]

Mimecast says it protects and supports 42,000+ organizations globally and has done so since 2003. Its pages say it offers 300+ integrations.[2][9][10][11][17][18]

Mimecast on the record

Sources

Mimecast full record

  1. [1]CompanyMimecast · mimecast.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]ProductsMimecast · mimecast.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Permira completes acquisition of mimecastPermira · permira.com · published May 17, 2022 · Tier A
  4. [4]Human Risk Management & Advanced Email Security | MimecastMimecast · undated page, accessed October 26, 2026 · Tier A
  5. [5]Advanced Email Security | MimecastMimecast · undated page, accessed October 26, 2026 · Tier A
  6. [6]Mimecast Incydr | See & Stop Data Loss From Insiders | MimecastMimecast · undated page, accessed October 26, 2026 · Tier A
  7. [7]Security Awareness Training | MimecastMimecast · undated page, accessed October 26, 2026 · Tier A
  8. [8]Email Incident Response Service | MimecastMimecast · undated page, accessed October 26, 2026 · Tier A
  9. [9]Email Archive | MimecastMimecast · undated page, accessed October 26, 2026 · Tier A
  10. [10]Aware | Keep Collaboration Secure & Compliant | MimecastMimecast · undated page, accessed October 26, 2026 · Tier A
  11. [11]Cybersecurity Products and Services | MimecastMimecast · undated page, accessed October 26, 2026 · Tier A
  12. [12]Mimecast Appoints Ranjan Singh as Chief Executive OfficerGlobeNewswire · published June 25, 2026 · Tier A
  13. [13]Mimecast Advanced Email Security Reviews & Product Details - G2G2 · undated page, accessed October 26, 2026 · Tier C
  14. [14]Mimecast Reviews, Ratings & Features 2026 | Gartner Peer InsightsGartner Peer Insights · undated page, accessed October 26, 2026 · Tier C
  15. [15]Cyber Security Solutions | MimecastMimecast · undated page, accessed November 4, 2026 · Tier A
  16. [16]Email & Collaboration Threat Protection | MimecastMimecast · undated page, accessed November 4, 2026 · Tier A
  17. [17]Collaboration Threat Protection | MimecastMimecast · undated page, accessed November 4, 2026 · Tier A
  18. [18]Mimecast Plans | MimecastMimecast · undated page, accessed November 4, 2026 · Tier A
  19. [19]Mimecast Reviews, Ratings & Features 2026 | Gartner Peer InsightsGartner Peer Insights · undated page, accessed November 4, 2026 · Tier C

Sendmarc full record

  1. [1]sendmarc.comSendmarc · sendmarc.com · undated page, accessed October 30, 2026 · Tier A
  2. [2]Sendmarc: Advanced DMARC Configuration & Management Platform | SendmarcSendmarc · undated page, accessed November 10, 2026 · Tier A
  3. [3]About Sendmarc | Discover how we make the Internet saferSendmarc · undated page, accessed November 10, 2026 · Tier A
  4. [4]Sign Up For Sendmarc and Banish Spear Phishing ForeverSendmarc · undated page, accessed November 10, 2026 · Tier A
  5. [5]DMARC Managed Services Built for MSPs' Growth | SendmarcSendmarc · undated page, accessed November 10, 2026 · Tier A
  6. [6]Sendmarc Email Security To Protect Bidvest's StakeholdersSendmarc · published May 17, 2023 · Tier A
  7. [7]How Cancer Council Queensland Is Protected From CyberthreatsSendmarc · published October 18, 2023 · Tier A
  8. [8]University Email Protection: MUT Cuts Spoofing 95% | SendmarcSendmarc · undated page, accessed November 10, 2026 · Tier A
  9. [9]Cybersecurity in Real Estate: Growthpoint’s Win | SendmarcSendmarc · undated page, accessed November 10, 2026 · Tier A
  10. [10]MSP Achieves 100% DMARC-Compliant Domains | SendmarcSendmarc · undated page, accessed November 10, 2026 · Tier A
  11. [11]Sendmarc Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

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