MailChannels
Product vendorOutbound email filtering, abuse detection and sender reputation protection.
CA
Categories · Market focus
Email & messaging companies
Cybersecurity companies focused on email & messaging.
63 companies. Refine by location, capabilities, or team size to find the right fit.
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MailGuard
Product vendorEmail security against phishing, malware and impersonation.
AU
Mailhardener
Product vendorEmail domain authentication, transport security and abuse monitoring.
NL
Mailinblack
Product vendorEmail protection and employee security awareness.
Marseille, FR
Mailprotector
Product vendorEmail filtering, encryption and zero-trust email protection.
US
Material Security
Product vendorEmail phishing protection, account takeover defence and email data loss prevention.
US
Mesh Email Security
Product vendorEmail threat protection and security management for managed service providers.
IE
Mimecast
Product vendorEmail security, continuity, and human-risk training.
London, GB· 1000+ people
Net at Work
Consultancy / pentestEmail security and Microsoft 365 security integration.
DE
Pablosec Solutions
Consultancy / pentestSecure networking, SASE implementation and email security services.
Dublin, IE· 2–9 employees (reported) people
PCLAND COMPUTER SERVICES
MSSP / managedManaged IT, endpoint and email protection, and compliance readiness support.
Land O' Lakes, US· 2–9 employees (reported) people
Precision Solution Group
MSSP / managedCybersecurity, email protection and vulnerability management services.
Columbus, US· 2–9 employees (reported) people
Proofpoint
Product vendorEmail security, threat protection, and human-risk controls.
Sunnyvale, US· 1000+ people
Proxmox Server Solutions
Product vendorOpen-source email security gateways and server infrastructure software.
AT
Purple Folder
MSSP / managedManaged cybersecurity covering endpoint detection, incident response, network monitoring and email security.
Tigard, US· 2–9 employees (reported) people
Red Sift
Product vendorEmail authentication and domain protection.
London, GB
Retarus
Product vendorEmail security, secure messaging and protected information exchange.
DE
RPost
Product vendorEmail encryption, data loss prevention and digital communication security.
US
SecuLetter
Product vendorEmail attachment analysis and content disarm and reconstruction.
KR
Secure Origin
MSSP / managedManaged endpoint, email and identity security for organizations handling sensitive information.
West Hollywood, US· 2–9 employees (reported) people
SecureTech
MSSP / managedManaged security, email protection, security operations and CMMC readiness services.
San Antonio, US· 2–9 employees (reported) people
Sendmarc
Product vendorEmail authentication management and domain spoofing protection.
ZA
SEPPmail
Product vendorEmail encryption, digital signatures and secure email gateways.
CH
SMX
Product vendorCloud email security gateways, email archiving and Microsoft 365 protection.
NZ
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