iRedMail

Overview

• Why build your own mail server instead of outsourcing to external entities
• Major open source softwares used in iRedMail, and big picture of mail flow
• Which network ports are open by iRedMail

Install iRedMail

• Install iRedMail on:

  • Red Hat Enterprise Linux, CentOS
  • Debian, Ubuntu
  • FreeBSD (without Jail), FreeBSD with Jail (ezjail)
  • OpenBSD

• After installation:

  • Setup DNS records for your iRedMail server (A, PTR, MX, SPF, DKIM)

• Additional installation tips

  • Install iRedMail with a remote MySQL server
  • Perform silent/unattended iRedMail installation

• Performance tuning for a busy server

Configure mail client applications

• Exchange ActiveSync: Setup Android devices
• Exchange ActiveSync: Setup BlackBerry 10 devices
• Exchange ActiveSync: Setup iOS devices
• Exchange ActiveSync: Setup Outlook 2013 for Windows
• Setup Thunderbird: POP3/IMAP, SMTP and global ldap address book
• Setup Thunderbird: SOGo Address Book and Calendar synchronization with CardDAV and CalDAV
• Mac OS X: Add contact service (CardDAV) in Contacts.app
• Mac OS X: Add calendar (CalDAV) and task (Reminders) service in iCalendar.app

Release notes and upgrade tutorials

• iRedMail release notes and upgrade tutorials
• iRedAdmin-Pro (web-based admin panel) release notes and upgrade tutorials
• iRedAPD (Postfix Access Policy Daemon) release notes and upgrade tutorials

Migrations

• Migrate old iRedMail server to the latest stable release
• Password hashes
• Migrate from Cluebringer to iRedAPD

How to

• Allow certain users to send email as another user
• Change mail attachment size
• Completely disable Amavisd + ClamAV + SpamAssassin
• Enable SMTP SASL AUTH on port 25
• 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
• Quarantine clean emails sent from/to certain local user
• Quarantining
• Sign DKIM signature on outgoing emails for new mail domain
• Allow insecure POP3/IMAP/SMTP connections without STARTTLS
• Allow internal network devices to send email with insecure connection
• Allow member to send email as mailing list or mail alias
• Allow user to send email without smtp authentication
• Amavisd: Enable per-recipient policy lookup
• Whitelists and Blacklists
• Authenticate without domain part in email address
• How to mark a mail domain as backup MX
• Change server hostname
• Process more emails concurrently
• Dovecot Master User: Access user's mailbox without owner's password.
• Enable DNSBL service in Postfix to reduce spam
• Enable postscreen service
• Force mail user to change password in 90 days
• Ignore Trash folder in mailbox quota
• LDAP: Add an alias domain
• LDAP: Add per-domain catch-all account
• LDAP: Add a mail alias account
• LDAP: Add a mail list account
• LDAP: Bulk create mail users
• LDAP: User mail forwarding
• Mailbox sharing (Sharing IMAP folder with other users)
• Manage iRedAPD (white/blacklists, greylisting, and more)
• Monitor incoming and outgoing mails with BCC
• Move detected spam to Junk folder
• Per-domain or per-user transport (relay)
• Pipe incoming email for certain user to external script
• Promote a mail user to be global admin
• How to create and manage public folder
• Force Dovecot to recalculate mailbox quota
• Setup relayhost
• Reset user password
• Restrict mail user to login from specified IP addresses or networks
• Send out email from specified IP address
• Sign disclaimer on outgoing mails
• SQL: Add per-domain catch-all account
• SQL: Add a mail alias account
• SQL: Create new mail user
• SQL: User mail forwarding
• Store SpamAssassin bayes in SQL
• Use a SSL certificate
• Use OpenLDAP as address book in Microsoft Outlook
• Per-user alias address

Documents contributed by iRedMail users:

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

Third-party integrations

Below tutorials are maintained by iRedMail project.

• Integrate Microsoft Active Directory in iRedMail

• Install SOGo groupware on:

  • CentOS 6: MySQL, OpenLDAP.

Documents contributed by iRedMail users:

• Integreate OpenFire in iRedMail (MySQL backend) (Turkish)
• Enabling Apache Solr 4.10 (using jetty) with Dovecot 2.2 for fulltext search results on Centos 6 (iRedMail compatible)
• Install iRedMail and Mailman on Debian Squeeze. Howtoforge tutorial, contributed by Jason Norwood-Young.
• Integrate DBMail in iRedMail (MySQL backend), CentOS
• High-Availability Maildir Storage With GlusterFS + CentOS 5.x, contributed by Basem Hegazy. 2011-06-26
• Integrate OpenVPN in iRedMail with OpenLDAP, Howtoforge tutorial.
• Integrate Ejabberd in iRedMail with OpenLDAP
• Virtual Mail And FTP Hosting With iRedMail And Pure-FTPd

Cluster

Documents contributed by iRedMail users:

• Build an iRedMail fail-over Cluster with KeepAlived, HAProxy, GlusterFS, OpenLDAP, Mariadb, contributed by
• An Ultra-HA, full Mult-Master E-mail cluster with iRedMail, MariaDB, and IPVS, contributed by Joshua Boniface.

iRedAdmin-Pro

• iRedAdmin-Pro: Custom logo image, brand name, short product description
• iRedAdmin-Pro: Default password restrictions
• iRedAdmin-Pro: Domain ownership verification
• iRedAdmin-Pro: RESTful API
• iRedAdmin-Pro: Enable self-service to allow users to manage their own preferences and more
• iRedAdmin-Pro: Priority of spam policy used in iRedMail & iRedAdmin-Pro
• iRedAdmin: Translate iRedAdmin to your local language

Troubleshooting and Debug

• Turn on debug mode in Amavisd and SpamAssassin
• Turn on debug mode in Dovecot
• Turn on debug mode in iRedAPD
• Log executed SQL commands in MySQL/MariaDB
• Turn on debug mode in OpenLDAP
• Turn on debug mode in Postfix
• Turn on debug mode in Roundcube webmail
• Turn on debug mode in SOGo

Frequently Asked Questions

• Errors you may see while maintaining iRedMail server
• Why append timestamp in maildir path
• Explanation of Amavisd SQL database
• Backup and restore
• Customize maildir path
• Locations of configuration and log files of major components