CISO Tribune

Vendor comparison · 2 companies

Red Sift vs Sendmarc

Red Sift helps security and IT teams embrace the security protocols that keep the internet safe, such as DMARC, SPF, DKIM and TLS. 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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  • Red Sift
  • Sendmarc
Red Sift vs Sendmarc: Products, Customers and Funding Compared
Red SiftRed Sift helps security and IT teams embrace the security protocols that keep the internet safe, such as DMARC, SPF, DKIM and TLS.redsift.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
  • Red Sift OnDMARC[2][9]Email authentication product for DMARC enforcement.
  • 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[5][6]Not stated on its pages
Founded
2015[3]Not stated on its pages
Ownership and funding
Privately held[2][4][15]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • 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]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: listed, seen November 4, 2026[15]
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 10, 2026[11]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
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. Save the Children also appears as a customer story for OnDMARC. The about page says the company works across EMEA, APAC and the US.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

  • Email authentication and DMARC is the primary category of both Red Sift and Sendmarc.

Where they differ, field by field

  • Red Sift is also filed under External attack surface management, Digital risk protection and Machine identity and PKI.
  • Red Sift lists Red Sift OnDMARC. Sendmarc lists Lookalike Domain Defense and Breach Detection.
  • Red Sift is headquartered in London, United Kingdom.
  • Red Sift was founded in 2015.
  • Red Sift is privately held.

How they differ

CISO Tribune files Red Sift under Email authentication and DMARC as its primary category, along with External attack surface management, Digital risk protection, and Machine identity and PKI. CISO Tribune files Sendmarc under Email authentication and DMARC only, which is also its primary category. Red Sift sells Red Sift OnDMARC, which lets customers configure SPF, DKIM, DMARC, BIMI and MTA-STS in one place. Red Sift also describes Brand Trust, which scans for malicious lookalikes and monitors social media, and DNS Guardian, which monitors DNS configuration. Sendmarc sells a DMARC platform that lets customers manage any number of domains, plus Lookalike Domain Defense and Breach Detection, which monitors sources including the dark web for leaked credentials. Sendmarc expanded its portfolio in 2023 to include Breach Detection and Lookalike Domain Defense.

Red Sift is headquartered in London, United Kingdom, was founded in 2015, and is privately held. Red Sift says it works across EMEA, APAC and the US. Its named customer story for OnDMARC is Save the Children. Sendmarc says it serves enterprises, governments, and SMEs worldwide, and it has a tailored solution for MSPs, OEMs, and partners. Sendmarc offers a fully managed and guided implementation for larger or more complex organizations.

On 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.

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 Red Sift and Sendmarc

What do Red Sift and Sendmarc sell?
Red Sift sells Red Sift OnDMARC. Sendmarc sells Lookalike Domain Defense and Breach Detection.
Are Red Sift and Sendmarc in the same category?
Yes. Email authentication and DMARC is the primary category of both on CISO Tribune.
Where are Red Sift and Sendmarc headquartered?
Red Sift is headquartered in London, United Kingdom.
When were Red Sift and Sendmarc founded?
Red Sift was founded in 2015.
Who owns Red Sift and Sendmarc?
Red Sift is privately held.
Who are Red Sift and Sendmarc 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. From its own pages, Sendmarc sells mainly to businesses of all sizes, including enterprises, governments, and SMEs.
What have Red Sift and Sendmarc 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 Red Sift

Red Sift helps security and IT teams embrace the security protocols that keep the internet safe, such as DMARC, SPF, DKIM and TLS. Red Sift says it is creating a fundamentally safer internet through proactive security across email, web and PKI.[7][8]

Red Sift OnDMARC is the company's email authentication product. Red Sift says OnDMARC gives instant visibility into a domain's email security posture and a clear path to DMARC enforcement. Red Sift says OnDMARC helps organizations reach full DMARC enforcement in just 6 to 8 weeks. OnDMARC lets customers configure SPF, DKIM, DMARC, BIMI and MTA-STS in one place. Red Sift OnDMARC includes integrated VMC provisioning to simplify BIMI adoption.[9]

Red Sift Radar is part of the OnDMARC offering. Red Sift says Radar pinpoints the root cause of issues like misaligned SPF records or unauthorized IPs. DNS Guardian provides continuous monitoring of DNS configuration to prevent SubdoMailing, dangling DNS and CNAME takeovers.[9]

Red Sift describes it as detecting, monitoring and taking down malicious lookalikes with AI-powered domain and brand protection. Red Sift says Brand Trust can scan up to 150 million domains daily. Brand Trust lets teams issue takedown packages, escalate to enforcement bodies, or integrate intelligence into a SIEM and SOC. Social Media Monitoring in Brand Trust detects and removes fake profiles across Facebook, Instagram, X, TikTok, YouTube and LinkedIn.[11]

Red Sift describes the problem it addresses as impersonation attacks against a brand. Its pages say that without DMARC, attackers can send spoofed emails from a domain to customers' inboxes, and that lookalike domains and phishing websites can be used to scam customers. Red Sift says it helps resource constrained security and IT teams reach DMARC enforcement in just 6-8 weeks.[7]

Red Sift names customers across several sectors. Red Sift also publishes guidance aimed at healthcare organizations and at MSPs offering DMARC services.[16][17]

Red Sift says it works across EMEA, APAC and the US. Red Sift says it has team members in 18 countries. Red Sift's homepage refers to 1,500+ security teams that choose it.[1][7][8][9][10][12][13][14]

Red Sift on the record

Sources

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

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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