CISO Tribune

Vendor comparison · 2 companies

Hornetsecurity vs Red Sift

Hornetsecurity sells a suite of services for Microsoft 365 security, risk, governance, compliance and backup. Red Sift helps security and IT teams embrace the security protocols that keep the internet safe, such as DMARC, SPF, DKIM and TLS. 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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  • Hornetsecurity
  • Red Sift
Hornetsecurity vs Red Sift: Products, Customers and Funding Compared
HornetsecurityHornetsecurity sells a suite of services for Microsoft 365 security, risk, governance, compliance and backup.hornetsecurity.comRed SiftRed Sift helps security and IT teams embrace the security protocols that keep the internet safe, such as DMARC, SPF, DKIM and TLS.redsift.com
What it sells
  • 365 Total Protection[3][4][7]A suite for Microsoft 365 security, risk, governance, compliance and backup.
  • 365 Total Backup[3][4][6]Automated Microsoft 365 data backup, recovery and protection.
  • Advanced Threat Protection[3][4][7][14]AI-powered protection of emails and data.
  • DMARC Manager[3][4][15]Safeguards domains against email impersonation, phishing and spoofing with DMARC, DKIM and SPF management.
  • Red Sift OnDMARC[2][9]Email authentication product for DMARC enforcement.
Categories
Headquarters
Not stated on its pagesLondon, United Kingdom[5][6]
Founded
Not stated on its pages2015[3]
Ownership and funding
Owned by Proofpoint, Inc. since 2025[2]Privately held[2][4][15]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • October 21, 2026Red Sift notified customers with potentially affected hosts after scanning the Hardenize customer base for PHP-backed hosts, following the PHP security fixes.[18]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 4, 2026[15]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetFrom its own pages, the company sells mainly to security and IT teams that want to adopt protocols such as DMARC, SPF, DKIM and TLS. Save the Children also appears as a customer story for OnDMARC. The about page says the company works across EMEA, APAC and the US.
Last verified
November 4, 2026September 27, 2026

Where they overlap

  • Hornetsecurity and Red Sift are both filed under Email authentication and DMARC.

Where they differ, field by field

  • Hornetsecurity's primary category is Email security; Red Sift's is Email authentication and DMARC.
  • Hornetsecurity is also filed under Security awareness training and Backup and cyber recovery. Red Sift is also filed under External attack surface management, Digital risk protection and Machine identity and PKI.
  • Hornetsecurity lists 365 Total Protection, 365 Total Backup, Advanced Threat Protection and DMARC Manager. Red Sift lists Red Sift OnDMARC.
  • Red Sift is headquartered in London, United Kingdom.
  • Red Sift was founded in 2015.
  • Hornetsecurity is owned by Proofpoint, Inc., since 2025. Red Sift is privately held.

What it sells: Hornetsecurity

What 365 Total Protection does[3][4][7]
365 Total Protection plans can be onboarded in Hybrid mode. Hornetsecurity offers one package that combines email security, backup, security awareness, access and permission control and domain fraud protection.
What 365 Total Backup does[3][4][6]
The backup and recovery solution covers mailboxes and In-Place Archive mailboxes, Teams, Planner, OneNote, Entra ID Users and Groups, OneDrive for Business accounts, and SharePoint document libraries. It includes unlimited backup storage and restoration and a 4-eye-approval process.
What Advanced Threat Protection does[3][4][7][14]
Hornetsecurity's Sandbox Engine scans email attachments for potential malware by running the file in a virtual, isolated test environment. Hornetsecurity's QR Code Analyzer detects QR codes embedded directly into an email or an image. Real Time Alerts notify an IT security team about acute attacks on the company in real time.
What DMARC Manager does[3][4][15]
DMARC Manager can capture all reports sent by recipient servers back to the sender and aggregate them into a single report. Hornetsecurity describes real-time data on email messages that fail DMARC checks.

What it sells: Red Sift

What Red Sift OnDMARC does[2][9]
Red Sift OnDMARC gives instant visibility into a domain's email security posture and a clear path to DMARC enforcement. It lets customers configure SPF, DKIM, DMARC, BIMI and MTA-STS in one place. Red Sift says it helps organizations reach full DMARC enforcement in just 6 to 8 weeks.

Questions about Hornetsecurity and Red Sift

What do Hornetsecurity and Red Sift sell?
Hornetsecurity sells 365 Total Protection, 365 Total Backup, Advanced Threat Protection and DMARC Manager. Red Sift sells Red Sift OnDMARC.
Are Hornetsecurity and Red Sift in the same category?
They share Email authentication and DMARC. Hornetsecurity's primary category is Email security and Red Sift's is Email authentication and DMARC.
Where are Hornetsecurity and Red Sift headquartered?
Red Sift is headquartered in London, United Kingdom.
When were Hornetsecurity and Red Sift founded?
Red Sift was founded in 2015.
Who owns Hornetsecurity and Red Sift?
Hornetsecurity is owned by Proofpoint, Inc., since 2025. Red Sift is privately held.
Who are Hornetsecurity and Red Sift sold to?
From its own pages, the company sells mainly to security and IT teams that want to adopt protocols such as DMARC, SPF, DKIM and TLS.
What have Hornetsecurity and Red Sift announced recently?
October 21, 2026: Red Sift notified customers with potentially affected hosts after scanning the Hardenize customer base for PHP-backed hosts, following the PHP security fixes.

About Hornetsecurity

Hornetsecurity sells a suite of services for Microsoft 365 security, risk, governance, compliance and backup. Hornetsecurity has been operating for 15 years. Hornetsecurity has a team of over 750 specialists. Hornetsecurity states that over 12,000 partners serve more than 125,000 customers around the globe. 365 Total Backup was formerly known as Altaro Office 365 Backup, and VM Backup was formerly known as Altaro VM Backup.[3][4][5][6]

365 Total Protection plans can be onboarded in Hybrid mode. Hornetsecurity offers one package that combines email security, backup, security awareness, access and permission control and domain fraud protection. Hornetsecurity's email security features include Spam, Malware and Phishing Filter, Advanced Threat Protection, Sandboxing, URL Rewriting, Quishing and Business Email compromise detection, AutoRemediate, Email Threat Response and Email Encryption. Hornetsecurity offers Email Archiving and Signatures and Disclaimers for managing email-related compliance and legal requirements.[1][3][4][7]

Hornetsecurity's backup and recovery solution for Microsoft 365 covers mailboxes and In-Place Archive mailboxes, Teams, Planner, OneNote, Entra ID Users and Groups, OneDrive for Business accounts, and SharePoint document libraries. The backup solution includes unlimited backup storage and restoration and a 4-eye-approval process. Hornetsecurity offers 12 regional data centers for storing data, independent of Microsoft's infrastructure.[4][7]

Hornetsecurity sells data leak prevention with permission management for Teams, OneDrive and SharePoint. Hornetsecurity offers a Governance, Risk, and Compliance (GRC) service for maintaining a compliant SharePoint, Teams and OneDrive data infrastructure and preventing users from sharing sensitive information. When a user shares a site or a file against the organization's compliance policy, site owners receive immediate notification about the violation. If a violation has not been removed by the site owner or admin, it is removed automatically based on the policy settings. Hornetsecurity's user profiling awareness engine detects the level of users, sends out automated attack simulations and creates awareness trainings based on the user's needs. Hornetsecurity lets customers set up and manage DMARC, DKIM and SPF policies for multiple domains through a single centralized platform. Hornetsecurity's suite can warn users whenever malicious links are shared through Teams chats, and it can delete entire conversations containing malicious messages.[4][7][8]

Teams Protection protects a tenant from internal compromised accounts by scanning all messages containing URLs and issuing a warning message in the conversation through the AI Cyber Assistant bot. Email Security Analyst automates responses to user queries about potential threats, replacing traditional manual analysis. AI Recipient Validation uses machine learning to analyse emails based on a user's previous communications and triggers warnings in several instances. AI Recipient Validation is available for Microsoft 365 users on the latest versions of their Outlook Mail Client for Windows, Mac and Web. AI Recipient Validation analyses email texts and attachments in the local Outlook client, and they are not transmitted to Hornetsecurity's servers. The AI Recipient Validation dashboard gives administrators an overview of the warning instances that users are exposed to and the user actions after being notified.[9][10]

Secure Links replaces the original link in an email with a rewritten version that goes through Hornetsecurity's secure web gateway. Hornetsecurity's Sandbox Engine scans email attachments for potential malware by running the file in a virtual, isolated test environment. Hornetsecurity's QR Code Analyzer detects QR codes embedded directly into an email or an image. Hornetsecurity's spam filtering service includes policy-based attachment filtering with nested archive inspection. Hornetsecurity services such as Email Encryption, Email Archive or the Continuity Service can be added with one mouse click. If a customer's mail server is unavailable, Hornetsecurity stores incoming emails for up to 7 days. Hornetsecurity sells an email archiving service for M365 and other email servers.[4][11][12][13]

Hornet.email is a hosted email service with features for collaborative work such as calendar, address book and tasks. The Hornet.email Starter Package consists of the Hornet.email email platform and the automatically integrated Spam Filter and Malware Protection. The Hornet.email Enterprise Package combines Advanced Threat Protection, Email Encryption and Email Archiving Services on a collaborative email platform. Hornet.email provides a mailbox for external and internal associates within an existing M365 license agreement. Hornetsecurity sells a backup and replication solution for Microsoft Hyper-V, Proxmox and VMware virtual machines. VM Backup can be bought as a perpetual license with a renewable Software Maintenance Agreement or as an annual subscription.[4][6][14]

Hornetsecurity states that its Partner Program applies no matter a partner's business model or team size. Hornetsecurity has an ebook for MSPs, written by a former MSP.[3][4][5][6][8][9][10][11][14][15]

Hornetsecurity on the record

Sources

Hornetsecurity full record

  1. [1]hornetsecurity.comHornetsecurity · hornetsecurity.com · undated page, accessed November 4, 2026 · Tier A
  2. [2]Proofpoint acquisition completed press releaseHornetsecurity · hornetsecurity.com · published December 8, 2025 · Tier A
  3. [3]hornetsecurity.comHornetsecurity · hornetsecurity.com · undated page, accessed November 4, 2026 · Tier A
  4. [4]Cybersecurity Services for Microsoft 365 | HornetsecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  5. [5]Hornetsecurity – Next-Gen Microsoft 365 SecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  6. [6]Backup Service Renewal | Hornetsecurity (formerly Altaro)Hornetsecurity · undated page, accessed November 10, 2026 · Tier A
  7. [7]365 Total Protection | Next-Gen Microsoft 365 Security SuiteHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  8. [8]365 Permission Manager for Microsoft 365 | HornetsecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  9. [9]AI Cyber Assistant by Hornetsecurity: Meet AI.MYHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  10. [10]AI Recipient Validation: Prevent Misdirected Emails | HornetsecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  11. [11]Advanced Threat Protection for Email | AI-powered Threat DefenseHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  12. [12]Spam Filter & Malware Protection | HornetsecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  13. [13]Business Email Continuity Service | HornetsecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  14. [14]Hosted Business Email | Hornet.emailHornetsecurity · undated page, accessed November 10, 2026 · Tier A
  15. [15]DMARC Manager - Secure Your Domain with HornetsecurityHornetsecurity · undated page, accessed November 10, 2026 · Tier A

Red Sift full record

  1. [1]redsift.comRed Sift · redsift.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]The Red Sift Pulse PlatformRed Sift · undated page, accessed September 27, 2026 · Tier A
  3. [3]Cloud email security brand protection startup red sift rises 54mSiliconANGLE · siliconangle.com · published February 24, 2022 · Tier B
  4. [4]6977295001Austin American-Statesman · statesman.com · published March 4, 2022 · Tier B
  5. [5]Red sift joins future fifty 2026 cohort unveiled by chancellor at downing streetRed Sift via EIN Presswire · thestarpress.com · published March 19, 2026 · Tier B
  6. [6]Red siftThe Wealth Mosaic · thewealthmosaic.com · undated page, accessed September 27, 2026 · Tier C
  7. [7]Red Sift | Creating a Fundamentally Safer Internet with Proactive SecurityRed Sift · undated page, accessed October 27, 2026 · Tier A
  8. [8]Proactive, intelligent security for every organization.Red Sift · undated page, accessed October 27, 2026 · Tier A
  9. [9]Red Sift OnDMARC | Stop Email Spoofing FastRed Sift · undated page, accessed October 27, 2026 · Tier A
  10. [10]OnDMARC Pricing | Plans for SMB to Enterprise + Free TrialRed Sift · undated page, accessed October 27, 2026 · Tier A
  11. [11]Stop lookalike domains before they damage your brandRed Sift · undated page, accessed October 27, 2026 · Tier A
  12. [12]Bird & Bird strengthens trust in legal communications with layered email and domain protectionRed Sift · undated page, accessed October 27, 2026 · Tier A
  13. [13]Find and fix issues 10x faster with Red Sift RadarRed Sift · undated page, accessed October 27, 2026 · Tier A
  14. [14]Red Sift Certificates Lite | Free Certificate MonitoringRed Sift · undated page, accessed October 27, 2026 · Tier A
  15. [15]Red Sift OnDMARC Reviews 2026: Details, Pricing, & Features | G2G2 · undated page, accessed October 27, 2026 · Tier C
  16. [16]How to Price and Package DMARC Services for Your MSP | Red SiftRed Sift · undated page, accessed November 4, 2026 · Tier A
  17. [17]DMARC solutions for healthcare organizationsRed Sift · undated page, accessed November 4, 2026 · Tier A
  18. [18]Critical PHP vulnerabilities CVE-2026-109618 and CVE-2026-109619 | Red SiftRed Sift · published October 21, 2026 · Tier A

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