host-name : Defines the server's hostname (e.g., mta.domain.com ).
The PowerMTA (PMTA) configuration file is the core component of the PowerMTA SMTP server, where almost all critical operational settings—from IP rotations to delivery throttling—are managed. Essential PowerMTA Config File Locations powermta config file link
max-conn-rate : Limits the number of simultaneous connections to a specific domain like Gmail. host-name : Defines the server's hostname (e