mox

v 0.0.12 Updated: 1 month, 4 weeks ago

Modern full-featured open source secure mail server for low-maintenance self-hosted email

Modern full-featured open source secure mail server for low-maintenance self-hosted email. Mox features: - Quick and easy to start/maintain mail server, for your own domain(s). - SMTP (with extensions) for receiving and submitting email. - IMAP4 (with extensions) for giving email clients access to email. - Automatic TLS with ACME, for use with Let's Encrypt and other CA's. - SPF, verifying that a remote host is allowed to sent email for a domain. - DKIM, verifying that a message is signed by the claimed sender domain, and for signing emails sent by mox for others to verify. - DMARC, for enforcing SPF/DKIM policies set by domains. Incoming DMARC aggregate reports are analyzed. - Reputation tracking, learning (per user) host- and domain-based reputation from (Non-)Junk email. - Bayesian spam filtering that learns (per user) from (Non-)Junk email. - Slowing down senders with no/low reputation or questionable email content (similar to greylisting). Rejected emails are stored in a mailbox called Rejects for a short period, helping with misclassified legitimate synchronous signup/login/transactional emails. - Internationalized email, with unicode names in domains and usernames ("localparts"). - TLSRPT, parsing reports about TLS usage and issues. - MTA-STS, for ensuring TLS is used whenever it is required. Both serving of policies, and tracking and applying policies of remote servers. - Web admin interface that helps you set up your domains and accounts (instructions to create DNS records, configure SPF/DKIM/DMARC/TLSRPT/MTA-STS), for status information, managing accounts/domains, and modifying the configuration file. - Autodiscovery (with SRV records, Microsoft-style and Thunderbird-style) for easy account setup (though not many clients support it). - Prometheus metrics and structured logging for operational insight.

Modern full-featured open source secure mail server for low-maintenance self-hosted email. Mox features: - Quick and easy to start/maintain mail server, for your own domain(s). - SMTP (with extensions) for receiving and submitting email. - IMAP4 (with extensions) for giving email clients access to email. - Automatic TLS with ACME, for use with Let's Encrypt and other CA's. - SPF, verifying that a remote host is allowed to sent email for a domain. - DKIM, verifying that a message is signed by the claimed sender domain, and for signing emails sent by mox for others to verify. - DMARC, for enforcing SPF/DKIM policies set by domains. Incoming DMARC aggregate reports are analyzed. - Reputation tracking, learning (per user) host- and domain-based reputation from (Non-)Junk email. - Bayesian spam filtering that learns (per user) from (Non-)Junk email. - Slowing down senders with no/low reputation or questionable email content (similar to greylisting). Rejected emails are stored in a mailbox called Rejects for a short period, helping with misclassified legitimate synchronous signup/login/transactional emails. - Internationalized email, with unicode names in domains and usernames ("localparts"). - TLSRPT, parsing reports about TLS usage and issues. - MTA-STS, for ensuring TLS is used whenever it is required. Both serving of policies, and tracking and applying policies of remote servers. - Web admin interface that helps you set up your domains and accounts (instructions to create DNS records, configure SPF/DKIM/DMARC/TLSRPT/MTA-STS), for status information, managing accounts/domains, and modifying the configuration file. - Autodiscovery (with SRV records, Microsoft-style and Thunderbird-style) for easy account setup (though not many clients support it). - Prometheus metrics and structured logging for operational insight.

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https://github.com/mjl-/mox