# How to * [ How to allow user to send email without authentication ](./4-howto/./4-howto/allow.user.to.send.email.without.authentication.md) * [ Amavisd + SpamAssassin not working, no mail header (X-Spam-*) inserted.](./4-howto/./4-howto/amavisd.no.x-spam.headers.md) * [ How to completely disable amavisd/ClamAV/SpamAssassin](./4-howto/./4-howto/completely.disable.amavisd.clamav.spamassassin.md) * [ How to disable spam virus scanning for outgoing mails](./4-howto/./4-howto/disable.spam.virus.scanning.for.outgoing.mails.md) * [ Configure Thunderbird as mail client (IMAP, SMTP and global ldap address book)](./4-howto/./4-howto/howto.configure.thunderbird.for.iredmail.md) * [ How to enable SMTPS service (SMTP over SSL, port 465)](./4-howto/./4-howto/howto.enable.smtps.service.md) * [ How to pipe incoming email for certain user to external script ](./4-howto/./4-howto/pipe.incoming.email.for.certain.user.to.external.script.md) * [ How to quarantine clean mail into SQL database](./4-howto/./4-howto/quarantining.clean.mail.md) * [ How to force Dovecot to recalculate mailbox quota ](./4-howto/./4-howto/recalculate.mailbox.quota.md) * [ How to store spamassassin bayes in SQL](./4-howto/./4-howto/store.spamassassin.bayes.in.sql.md) * [ How to perform silent/unattended iRedMail installation](./4-howto/./4-howto/unattended.iredmail.installation.md) * [ How to use or migrate password hashes](./4-howto/./4-howto/use.or.migrate.password.hashes.md) # Backup and Restore * [How to migrate old iRedMail server to the latest stable release](./5-backup-restore/./5-backup-restore/migrate.to.new.iredmail.server.md) # Troubleshooting and Debug * [ How to turn on debug mode in Dovecot](./9-troubleshooting/./9-troubleshooting/turn.on.debug.mode.in.dovecot.md) # Frequently Asked Questions * [ Why append timestamp in maildir path](./99-faq/./99-faq/why.append.timestamp.in.maildir.path.md)