A unified approach
to modern email security
Email attacks are becoming more sophisticated; they’re harder to detect and easier to scale, especially as AI fuels more convincing phishing attempts. Valimail and Sublime Security combine outbound authentication and inbound threat detection to help security teams stop advanced email threats on both sides.
450,000+ domains are secured by
Valimail + DigiCert
Inbound email threat detection
and outbound authentication
Valimail and Sublime deliver a more complete approach to email security by combining outbound authentication with inbound threat detection. Valimail helps stop domain spoofing and enforce trusted sender identity, while Sublime detects and responds to advanced phishing, BEC, and other inbound threats.
Coming soon, the Valimail + Sublime integration will help teams move faster on discovered threats by passing intelligence from Valimail into Sublime to detect and stop similar messages going forward.
Together, we provide stronger protection than legacy SEGs alone.
Prevent more threats
Block spoofing, phishing, BEC, and user-reported threats with outbound sender identity protection from Valimail and adaptive inbound threat detection from Sublime – including its Autonomous Security Analyst (ASA) agent.
Continuously improve defense
Keep email defenses accurate as infrastructure changes and new attacks emerge with Valimail’s always-on DMARC enforcement and Sublime’s adaptive, org-specific threat detection using the Autonomous Detection Engineer (ADÉ) AI agent.
Faster time to protection
Close protection gaps faster with accelerated DMARC enforcement, automated sender management, and rapid detection updates for emerging email threats and reduced MTTR.
Our partnership with Valimail brings together adaptive, org-specific protection against modern email attacks with identity enforcement that stops impersonation at the source—giving customers a clear, modern path forward beyond legacy SEG platforms.
Timm Hoyt
VP, WW Partners & Alliances, Sublime Security
Frequently asked questions about Valimail and Sublime Security
How do Valimail and Sublime Security work together to improve email security?
Valimail and Sublime Security give organizations a more complete approach to modern email security software by protecting both sides of the email threat landscape. Valimail secures outbound sender identity through automated DMARC enforcement and sender management, while Sublime strengthens inbound email security with advanced detection and response for phishing, BEC, vendor compromise, and other sophisticated threats. Together, they help teams reduce impersonation risk, close security gaps faster, and strengthen protection across the full email lifecycle.
Why do organizations need both inbound and outbound email security?
Modern attacks often combine spoofed domains, lookalike senders, compromised accounts, and realistic business context to bypass traditional defenses. That means organizations need outbound email security to prevent attackers from abusing trusted domains, and inbound email security to detect and stop threats that target employee inboxes. Together, Valimail and Sublime help customers reduce both domain-level spoofing and inbox-level impersonation.
How does this joint solution help protect against domain spoofing and advanced email threats?
Valimail helps stop unauthorized senders from using trusted domains, delivering stronger domain spoofing protection through automated DMARC enforcement and continuous sender management. Sublime adds advanced email threat detection to identify phishing, BEC, hijacked threads, vendor compromise, and other inbound threats. Together, Valimail and Sublime email security give teams a modern, coordinated approach to email protection software that reduces manual work, improves response, and helps move beyond legacy SEG-heavy workflows.
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