: More granular reporting on delivery attempts and bounce categories.
cd powermta-60r3
A default MTA like Postfix or Exim is likely running. Stop and disable it: sudo systemctl stop postfix sudo systemctl disable postfix Use code with caution. Error: Permission Denied on Spool Directory Symptom: Errors writing to /var/spool/pmta . powermta 60r3 install
Cryptographically signs outbound emails. Generate a 2048-bit RSA key pair. Put the private key in /etc/pmta/dkim.key and reference it inside your domain directives, then add the public key to your DNS. TXT Host: pmta._domainkey : More granular reporting on delivery attempts and