Postfix on a Mac
SMTP mail transfer agent · Mail
Postfix is the SMTP server Apple Server used under the hood, so migrating its main.cf/master.cf is largely a copy (FrontierStack's mail importer reads /Library/Server/Mail/Config). Install with Homebrew (brew install postfix) or a Linux package, pair it with Dovecot for IMAP/POP, and harden it with the Mail Security tools (SPF/DKIM/DMARC, open-relay test).
Run Postfix with FrontierStack
Install or connect Postfix; then check its status, ports and certificate from FrontierStack. The same screen links to firewall checks, Malware Audit and backups where they apply.
Run it from your Mac.
FrontierStack installs, monitors and secures services on this Mac and on linked servers.
Download FrontierStackApple notarized · Safe & secure · macOS 13 Ventura+