Red Sift OnDMARC

Red Sift is a UK-founded and UK-headquartered security company, led by co-founder and CEO Rahul Powar, whose mission is creating a fundamentally safer internet. It helps organizations stop attackers from impersonating their email domains and brands, and is used by more than 1,500 security teams. Its 54 million USD Series B was led by Highland Europe.

OnDMARC automates SPF, DKIM, DMARC, BIMI and MTA-STS, guiding domains to DMARC enforcement typically in six to eight weeks. Dynamic SPF removes DNS lookup limits, the Investigate tool tests configurations in real time, and DNS Guardian monitors dormant subdomains and DNS misconfigurations that attackers can hijack. The wider Red Sift platform adds Brand Trust for lookalike domains with AI logo detection, Certificates monitoring, attack surface management and the Radar AI assistant. Customers include Wise, TalkTalk, ITV, Pipedrive, ZoomInfo and Save the Children.

• Email authentication automation: Manages SPF, DKIM, DMARC, BIMI and MTA-STS from one console.
• Dynamic SPF: Removes SPF lookup limits as sending services change.
• Investigate: Tests and validates email configurations in real time.
• DNS Guardian: Monitors dormant subdomains and DNS misconfigurations against hijacking.
• Brand Trust add-on: Finds lookalike domains and brand abuse with AI logo detection.
• Radar AI: Helps teams find and fix security issues faster.

A Vietnamese bank can enforce DMARC on all its domains so customers cannot receive spoofed statements. An airline can display its logo in inboxes through BIMI while blocking fake booking emails. A retail group can detect lookalike domains used in promotion scams.

Domains typically reach DMARC enforcement in six to eight weeks; Pipedrive reached reject in six weeks and ZoomInfo across all domains in 16 weeks. Enforcement blocks direct spoofing of the brand in phishing aimed at customers and partners. Wise raised deliverability to 99%, showing that authentication also helps legitimate mail reach inboxes. A 14-day free trial and free checkers let teams assess their posture before buying.

Mailbox providers now enforce authentication requirements for bulk senders, and regulators in several Asian markets recommend DMARC for banks and government domains. Brand impersonation by email and lookalike domains continues to grow with AI-generated content. Vietnamese banks, airlines and retailers that send high volumes of customer email need to reach DMARC enforcement and watch for lookalike domains.

Red Sift states it was founded and is headquartered in the UK, and it raised a 54 million USD Series B led by Highland Europe. It was named one of G2's 2026 Best UK Software Companies, has been voted number one on G2 for 12 consecutive quarters and holds G2 Asia Pacific and EMEA Regional Leader badges. Its Series B announcement cites support for Asia Pacific, Europe and the Middle East.