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How to

• Allow user to send email without authentication
• Amavisd + SpamAssassin not working, no mail header (X-Spam-*) inserted.
• Completely disable Amavisd + ClamAV + SpamAssassin
• Configure Thunderbird as mail client (IMAP, SMTP and global ldap address book)
• Disable spam virus scanning for outgoing mails
• Enable SMTPS service (SMTP over SSL, port 465)
• LDAP: Add an alias domain
• LDAP: Add a mail alias account
• LDAP: Add a mail list account
• LDAP: User mail forwarding.
• Pipe incoming email for certain user to external script
• Quarantine clean mail into SQL database
• Force Dovecot to recalculate mailbox quota
• SQL: Create an mail alias account with SQL command line
• Store SpamAssassin bayes in SQL
• Perform silent/unattended iRedMail installation

Third-party integrations.

• How to install SOGo on CentOS 6 with iRedMail (MySQL backend)

Cluster solutions

• An Ultra-HA, full Mult-Master E-mail cluster with iRedMail, MariaDB, and IPVS

Backup and Restore

• How to migrate old iRedMail server to the latest stable release

Troubleshooting and Debug

• Turn on debug mode in Amavisd
• Turn on debug mode in Dovecot
• Turn on debug mode in OpenLDAP

Frequently Asked Questions

• Password hashes
• Why append timestamp in maildir path