You can group these into a to load-balance traffic across multiple IP addresses automatically. 4. Advanced Delivery Tuning and Queue Management
relay example.com relay_host = smtp.example.net; relay_port = 587; powermta configuration guide top
<virtual-mta transactional> group-id 100 <source 203.0.113.10> auto-fast-flush no process-x-header Yes </source> </virtual-mta> You can group these into a to load-balance
mail-acl admin, monitor postmaster-address postmaster@yourdeliverydomain.com notify-address bounce-admin@yourdeliverydomain.com Use code with caution. 2. IP Binding and VirtualMTA Configuration relay_port = 587
Test from an outside network to ensure the server is not an open relay.