Valimail, Sublime Partner on Email Security

Valimail and Sublime Security have partnered to bring Valimail’s email authentication tools to Sublime’s inbound email threat detection and response capabilities to help organizations better protect email from both sides: the messages sent from their domains and the threats coming into employees' inboxes.

Email attacks are getting harder to spot as phishing, business email compromise, spoofed senders, lookalike domains, and compromised infrastructure become more common. AI is also making impersonation easier to scale, which puts more pressure on security teams that are already dealing with too many alerts and manual investigations.

Valimail focuses on outbound protection by helping organizations enforce DMARC, manage authorized senders, and reduce the risk of domain spoofing. Sublime adds inbound detection, prevention, and response for phishing, BEC, hijacked threads, and vendor compromise. Together, the companies are positioning the partnership as a way for customers to reduce email security gaps, cut down manual review, and respond faster as attack methods change.

For MSSPs, VARs, and service providers, the partnership creates a clearer way to package email security around authentication, detection, and response. Many customers know email is still one of their biggest risk areas, but they do not always know how to connect DMARC, phishing defense, and response workflows into one program. That creates room for partners to step in with managed services that are easier to explain, deliver, and support.