Vendor Best for Core Features PricingMicrosoft Defender for Office 365 Enterprises deeply invested in Microsoft 365, needing native email security Safe Links and Safe AttachmentsAnti-phishing and impersonation protectionAutomated investigation and response (AIR)AI-driven threat intelligence Plan 1: ~$2/user/monthDefender for Business: ~$2.40/user/month30-day free trialProofpoint Core Email Protection Enterprises facing high phishing and BEC risk across cloud and hybrid email AI-powered phishing and BEC detectionPre- and post-delivery threat protectionBehavioural analysis and threat intelligenceAutomated response workflows Beginner: $1.65/user/monthBusiness: $3.03/user/monthAdvanced: $4.13/user/monthProfessional: $5.86/user/monthCoro Cybersecurity Security teams seeking unified email, endpoint, and cloud protection API-based email threat detectionAutomated post-delivery remediationIntegrated email, endpoint, and cloud securityCentralised security dashboard Starts around $9.50/user/monthAdvanced packages on requestFree trial availableCisco Secure Email Large enterprises using Cisco security ecosystem Talos threat intelligence-powered detectionPhishing, malware, and BEC protectionData loss prevention and encryptionCentralised reporting and analytics Starts around $1.90/user/monthTiered plans availableSpamTitan Email Security Cost-conscious teams needing strong spam and malware filtering Advanced spam filtering and greylistingDual antivirus enginesAttachment and link scanningQuarantine and reporting controls Starts at ~$1.95/user/monthFree trial availableBarracuda Email Protection Enterprises needing multi-layered email security with backup and compliance AI-based phishing and malware detectionAccount takeover and impersonation defenceEmail encryption and DLPCloud backup and archiving Three plans (Advance, Premium, Premium Plus) are available.Pricing on requestFree trial available.

Source: Economic Times January 30, 2026 14:10 UTC