v56.2

Changelog

🔽 - The change was imported from the upstream update
🌟 - Change specific to Power Mail-in-a-Box

Software Updates

• Nextcloud updates:
• • 🌟 Contacts plugin was updated to version 4.0.8;
• • 🌟 Calendar plugin was updated to version 3.0.6;

SMTP Relays

• 🌟 Setup now installs a package libsasl2-modules, which is needed for relays to work (#44);
• 🌟 The "authorized servers" part of the form now accepts a pure SPF record (which will not be changed);
• 🌟 Using mail as the relay's DKIM selector will now cause the box to pick another selector mailorigin instead of erroring out;
• 🌟 Added a notice in the end of the page specifically specifying that custom DMARC policies could be done directly in DNS;

Setup

• 🌟 Fix a stderr piping typo;

Mail

• 🌟 Changed the SMTP banner - it no longer makes mention to the underlying distribution;
• Changed the Postfix TLS settings (exclusively for port 25):
• • 🌟 Some very weak ciphers were explicitly excluded;
• • 🌟 Cipher preference is now enforced by the server;
• • See #45 for more details!