Freedom251 › Mail Server Software
poste.io

Plans
| Plan | Billed and limits | Price |
|---|---|---|
| FREE | Free · For personal use only · unlimited mailboxes and domains · no email support | Free |
| PRO+ | 1239$ /year · Managed deployment and migration · unlimited mailboxes and domains · email support · remote installation, updates and monitoring | $1,239 a year |
| PRO | 549$ 349$ /year · For production use · unlimited mailboxes and domains · domain administrators · diagnostics and log viewers · email support | $349 a year |
As poste.io lists them, read 9 Oct 2026. The maker's own page has the final word.
Facts from poste.io's own pages
- Administration
- The product includes web administration, a REST API, mailbox quotas, and per-mailbox settings. · poste.io, 9 Oct 2026
- Company
- Poste.io identifies Analogic s.r.o. in Klatovy, Czech Republic, and says it has been shipping since 2014. · poste.io, 9 Oct 2026
- Deployment and data
- Poste.io runs in Docker, while mail and configuration are stored on a user-owned volume and the user database is a single SQLite file. · poste.io, 9 Oct 2026
- Deployment requirements
- The getting-started guide requires a 64-bit Linux distribution, Docker, a public IP address, reverse-DNS control, and access to domain DNS administration for an internet-ready server. · poste.io, 9 Oct 2026
- Founded
- 2014 · poste.io, 28 Sept 2026
- Headquarters
- Klatovy, Czech Republic · poste.io, 28 Sept 2026
- Included components
- The container includes Haraka, Dovecot, Rspamd, ClamAV, Roundcube, NGiNX, SQLite, and Z-Push. · poste.io, 9 Oct 2026
- Integrations
- The documentation describes an Elasticsearch integration for PRO log viewing and names Uptime Kuma, Prometheus, and Grafana as external monitoring systems that can use its monitoring API. · poste.io, 9 Oct 2026
- Mail features
- It supports SMTP, IMAP, POP3, HTTPS webmail, redirects, aliases, vacation replies, Sieve filtering, and autodiscovery. · poste.io, 9 Oct 2026
- Managed service
- PRO+ includes transfer of current email accounts and remote installation, updates, and monitoring; transfers are offered for servers based on Unix software. · poste.io, 9 Oct 2026
- Monitoring
- An authenticated, read-only health and metrics API is available for external monitoring, is disabled by default, and cannot read email or change settings. · poste.io, 9 Oct 2026
- Product
- Poste.io is a self-hosted email server with web administration, webmail, spam protection, and mail server components in one Docker container. · poste.io, 9 Oct 2026
- Security
- The feature page states that TLS is used on every protocol, passwords use salted SHA512, and SPF, DKIM, DMARC, and SRS are supported. · poste.io, 9 Oct 2026
- Support
- The pricing page includes email support with PRO and PRO+, while FREE is marked as not including it. · poste.io, 9 Oct 2026
Where poste.io stands on Freedom251
- Mail Server Software#15 of 34