Powermta - 60r3

# Allow only authorized injection ports (25, 587, 2525) iptables -A INPUT -p tcp --dport 25 -s 10.0.0.0/8 -j ACCEPT iptables -A INPUT -p tcp --dport 25 -j DROP

Granular tracking of "4xx" temporary deferrals versus "5xx" permanent bounces. powermta 60r3

: The update includes multiple bug fixes and refinements designed to improve overall stability for enterprise users managing massive mailing lists. # Allow only authorized injection ports (25, 587,

: Security is a critical aspect of email communication. PowermTA 6.0R3 comes with enhanced security features, including better encryption support, more robust authentication mechanisms, and improved protection against email abuse. PowermTA 6

Security is no longer optional. PowerMTA 6.0r3 provides more robust support for and Mandatory TLS . It allows administrators to define strict encryption policies for specific destination domains, ensuring that sensitive transactional data is never transmitted over plaintext if a secure path is available. 3. Support for Modern Authentication