# Check queue pmta show queue --domain gmail.com
Limit new VirtualMTAs to low daily volumes, gradually doubling traffic every 3 to 5 days.
To tailor these configuration settings exactly to your infrastructure, tell me: What do you plan to send per day?
max-smtp-out 20 max-msg-per-connection 100 retry-interval 15m Use code with caution. Microsoft (Outlook/Hotmail) Configuration Template
Automating the removal of dead addresses and complaining recipients is critical for keeping your data clean and maintaining low spam rates.
Proper authentication is non‑negotiable. Without it, your mail will be flagged as spam or rejected outright.
