Email Server
From Realm Business Systems Ltd
A private open source email server provides unlimited configuration, customisation, and users, with no additional cost per user and mailbox size up to the available storage.
- DKIM signed email
- DNSBL Blocklists
- RHSBL Blocklists
- URIBL Blocklists
- Whitelist / Blacklist
- Greylisting
- Spam and Virus filtering
- GeoIP filtering
- Multi-domain
- SSL Encrypted IMAP + SMTP + POP3
- TLS transport to remote SMTP hosts
- SSL Webmail with DAV integration of Calendars, Contacts, Tasks
- Server Sieve email filtering
- Open source Letsencrypt SSL Domain Verification certificates, or commercial SSL certificates.
Koozali SME Server is free and open source – there are no limitations and you can inspect, integrate, extend and modify however you want.