# How to

* [ How to allow user to send email without authentication
](html/howto/allow.user.to.send.email.without.authentication.md)
* [ Amavisd + SpamAssassin not working, no mail header (X-Spam-*) inserted.](html/howto/amavisd.no.x-spam.headers.md)
* [ How to completely disable amavisd/ClamAV/SpamAssassin](html/howto/completely.disable.amavisd.clamav.spamassassin.md)
* [ How to disable spam virus scanning for outgoing mails](html/howto/disable.spam.virus.scanning.for.outgoing.mails.md)
* [ Configure Thunderbird as mail client (IMAP, SMTP and global ldap address book)](html/howto/howto.configure.thunderbird.for.iredmail.md)
* [ How to enable SMTPS service (SMTP over SSL, port 465)](html/howto/howto.enable.smtps.service.md)
* [ How to pipe incoming email for certain user to external script ](html/howto/pipe.incoming.email.for.certain.user.to.external.script.md)
* [ How to quarantine clean mail into SQL database](html/howto/quarantining.clean.mail.md)
* [ How to force Dovecot to recalculate mailbox quota
](html/howto/recalculate.mailbox.quota.md)
* [ How to store spamassassin bayes in SQL](html/howto/store.spamassassin.bayes.in.sql.md)
* [ How to perform silent/unattended iRedMail installation](html/howto/unattended.iredmail.installation.md)
* [ How to use or migrate password hashes](html/howto/use.or.migrate.password.hashes.md)

# Third-party integrations.

* [ How to install SOGo on CentOS 6 with iRedMail (MySQL backend)](html/integrations/sogo-centos-6-iredmail-mysql.md)

# Backup and Restore

* [How to migrate old iRedMail server to the latest stable release](html/backup-restore/migrate.to.new.iredmail.server.md)

# Troubleshooting and Debug

* [ How to turn on debug mode in Dovecot](html/troubleshooting/turn.on.debug.mode.in.dovecot.md)

# Frequently Asked Questions

* [ Why append timestamp in maildir path](html/faq/why.append.timestamp.in.maildir.path.md)