SMTP + IMAP + POP3 + Antispam + Antivirus
Web administration + Web email
...on your server in ~5 minutes
Fast deployment
You can have full-featured mailserver installed in couple minutes mostly waiting until script get job done. Whole package was designed with sane defaults to start quickly without knowing internals and without doing decisions which can break e-mail system.
Data has its own volume
User data and configuration is strictly separated from binaries. User database is stored in SQLite database - in file. Therefore Poste.io can be fully used with external storages. Migration, backups or updates are therefore very easy and mostly consist of files manipulation.
Security
Poste.io is created since begining with security in mind. Internet history is full of painful security incidents, so we traded old email clients compatibility and unsecure authentication methods for features which fits modern security requirements.
Built with Open Source
(created with draw.io)
Installing full featured mail server from Open Source components is not simple task - see schema. Making the necessary plumbing with easy to use web administration is another challenge. Installation of poste.io consists of three easy steps and couple minutes to have ready to use full featured robust email server.
Screenshots
Features
- native implementation of SPF, DKIM, DMARC with simple wizard
- Antivirus engine for detecting trojans, viruses, malware (ClamAV)
- Built-in spam filter (SpamAssassin)
- Webmail client on HTTPS (Roundcube)
- Email redirection, autoreply and other filtering by Sieve scripts (email owner managed, every action can be scripted)
- Quota for limiting mail box space or email count
- Web administration with different rights for system administrator, domain administrator, email owner.
- Built in autodiscovery for Microsoft products, Thunderbird...
- Diagnostics to help setup domain and mailserver properly
- SMTP - port 25, 465 (TLS), 587
- POP3 - port 110, 995 (TLS)
- IMAP - port 143, 993 (TLS)
SSLTLS everywhere! No personal data, emails, logins go through interenet unencrypted.- All passwords are by default stored as salted SHA512 hash (5000 rounds). Attackers will have hard time to crack your passwords.
- Whole mail server container is isolated by Docker from other apps.