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Install iRedMail

• Install iRedMail on Red Hat Enterprise Linux, CentOS
• Install iRedMail on Debian or Ubuntu Linux
• Install iRedMail on FreeBSD (without Jail)
• Install iRedMail on OpenBSD
• Setup DNS records for your iRedMail server
• Perform silent/unattended iRedMail installation

Configure mail client applications

• Configure Thunderbird as mail client (POP3/IMAP, SMTP and global ldap address book)

How to

• Allow certain users to send email as another user
• Change mail attachment size
• Completely disable Amavisd + ClamAV + SpamAssassin
• Enable SMTPS service (SMTP over SSL, port 465)
• Disable spam virus scanning for outgoing mails
• Amavisd + SpamAssassin not working, no mail header (X-Spam-*) inserted.
• Quarantining
• Sign DKIM signature on outgoing emails for new mail domain
• Allow insecure POP3/IMAP/SMTP connections without STARTTLS
• Allow user to send email without authentication
• Force mail user to change password in 90 days
• Ignore Trash folder in mailbox quota
• LDAP: Add an alias domain
• LDAP: Add a mail alias account
• LDAP: Add a mail list account
• LDAP: User mail forwarding.
• Monitor incoming and outgoing mails with BCC
• Pipe incoming email for certain user to external script
• Force Dovecot to recalculate mailbox quota
• SQL: Create domain catch-all account for SQL backend
• SQL: Create an mail alias account with SQL command line
• Store SpamAssassin bayes in SQL

Documents contributed by iRedMail users:

• Anti-spam with Dovecot antispam plugin and SpamAssassin, contributed by Dexus.

Third-party integrations

• Integrate Microsoft Active Directory in iRedMail
• SOGo: install SOGo on CentOS 6 with iRedMail (MySQL backend)

Documents contributed by iRedMail users:

• Enabling Apache Solr 4.10 (using jetty) with Dovecot 2.2 for fulltext search results on Centos 6 (iRedMail compatible)

Cluster

Documents contributed by iRedMail users:

• An Ultra-HA, full Mult-Master E-mail cluster with iRedMail, MariaDB, and IPVS, contributed by Joshua Boniface.

Migrations

• Migrate iRedAdmin open source edition to iRedAdmin-Pro
• Migrate old iRedMail server to the latest stable release
• Password hashes

Troubleshooting and Debug

• Turn on debug mode in Amavisd and SpamAssassin
• Turn on debug mode in Cluebringer
• Turn on debug mode in Dovecot
• Turn on debug mode in iRedAPD
• Turn on debug mode in OpenLDAP

Frequently Asked Questions

• Locations of configuration and log files of mojor components
• Why append timestamp in maildir path

This tutorial is published under a CC BY-ND 3.0 license.