How to Fix Postfix, Amavis & SpamAssassin: Connection Refused + 20-Minute Email Delays
#Postfix #Amavis #SpamAssassin #LinuxServer
Postfix connection refused and emails taking 20 minutes to arrive? This live Linux mail server troubleshooting session explores how to diagnose Postfix, Amavis, and SpamAssassin problems that can break email filtering and delay message delivery.
Follow a practical debugging workflow covering Amavis installation, missing modules, daemon testing, Postfix integration through master.cf and main.cf, mail-filter port failures, firewall checks, incorrect IP or port settings, and server log analysis.
You’ll also learn how to:
✅ Troubleshoot Amavis “connection refused” errors
✅ Verify that Postfix and Amavis services are running
✅ Check Postfix mail logs for configuration errors
✅ Test global and content-based email filtering
✅ Confirm spam filtering through message headers
✅ Perform smoke, spam, and antivirus filtering tests
✅ Investigate 20-minute delivery delays affecting normal and spam emails
✅ Debug Roundcube delivery to Gmail, Yahoo, and Proton Mail
✅ Simplify a complex SpamAssassin setup using spamd
This video is ideal for Linux system administrators, DevOps engineers, mail server administrators, hosting professionals, and anyone debugging Postfix, Amavis, SpamAssassin, SMTP, Roundcube, or delayed email delivery.
Watch until the end to see the real-world troubleshooting process and the next steps for stabilizing the complete mail-filtering pipeline.
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#EmailServer #SMTP #SysAdmin #DevOps #Roundcube