v2.2.0

• Added the NiXSPAM dns blacklist
• When a mail is moved from or into the junk folder via IMAP, rspamd learns the message for Bayes filtering
• Some Postfix settings were improved
• The Bayes databases from rspamd are imported on new installations
• Disk usage can be limited by defining a quota
• Accounts could be marked as send only, so that they can't receive mails but send them
• Temporary disabling of mail accounts is now possible
• rspamd is now available under http://127.0.0.1:81/rspamd/
• Service health is now monitored
• Improved documentation
• Removed the default user
• Added a wizard to do the initial setup