Features / Email & calendar
Mail that lands, and a calendar too.
A full Exim and Dovecot mail server with spam and virus filtering, webmail, and calendar and contacts sync for every mailbox. Deliverability tools help keep your mail out of spam folders.
Mailboxes
Everything your customers expect from a mail host.
- Virtual mailboxes with quotas and self-service password change
- Roundcube webmail, IMAP and SMTP with TLS enforced
- Auto-setup for Thunderbird, Outlook, Apple Mail and K-9 from just the address
- Forwarders including catch-all, with an optional kept copy
- Autoresponders with optional start and end dates
- Sieve filters: file, forward or discard by sender, subject or spam score
- Mailing lists with subscribers-only posting
- Auto-empty Trash and Spam after 7–90 days
Calendar & contacts
New in 1.5.51: CalDAV and CardDAV for every mailbox.
- Sync with phones and Thunderbird using the mailbox address and password
- Auto-discovery records so iOS, Thunderbird and DAVx5 find it from the email address
- Its own isolated service, with a wrong-password jail
- Per-mailbox item limits
Deliverability
Set up properly from the first domain, then guided towards strict policies.
- SPF, DKIM and DMARC created automatically for new domains
- Deliverability score out of 100 (SPF, DKIM, DMARC, MX, TLS)
- DMARC and TLS report viewer: who sends as your domain, and pass rates
- Autopilot that guides DMARC to reject and MTA-STS to enforce, one click per step
- Blacklist monitor for your mail IPs and domains, with removal links
- SMTP relay for networks that block port 25
Protection & queue
Spam and virus filtering on the way in, sending limits and a hacked-mailbox hold on the way out.
- SpamAssassin with per-mailbox spam thresholds
- ClamAV rejects infected inbound mail
- Mail guard holds outgoing mail from mailboxes that look hacked
- Sending rate limits per mailbox, per list and server-wide
- Queue browser with per-message retry, delete and inspect
- Delivery log: delivered, bounced or deferred, filterable