poste.io

Spec sheet

Product

Poste.io is a self-hosted email server with web administration, webmail, spam protection, and mail server components in one Docker container.Read 9 Oct 2026 · poste.io

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.Read 9 Oct 2026 · poste.io

Security

The feature page states that TLS is used on every protocol, passwords use salted SHA512, and SPF, DKIM, DMARC, and SRS are supported.Read 9 Oct 2026 · poste.io

Support

The pricing page includes email support with PRO and PRO+, while FREE is marked as not including it.Read 9 Oct 2026 · poste.io

Headquarters

Klatovy, Czech RepublicRead 28 Sep 2026 · poste.io

Founded

2014Read 28 Sep 2026 · poste.io

Company

Poste.io identifies Analogic s.r.o. in Klatovy, Czech Republic, and says it has been shipping since 2014.Read 9 Oct 2026 · poste.io

Administration

The product includes web administration, a REST API, mailbox quotas, and per-mailbox settings.Read 9 Oct 2026 · poste.io

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.Read 9 Oct 2026 · poste.io

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.Read 9 Oct 2026 · poste.io

Included components

The container includes Haraka, Dovecot, Rspamd, ClamAV, Roundcube, NGiNX, SQLite, and Z-Push.Read 9 Oct 2026 · poste.io

Mail features

It supports SMTP, IMAP, POP3, HTTPS webmail, redirects, aliases, vacation replies, Sieve filtering, and autodiscovery.Read 9 Oct 2026 · poste.io

Managed service

PRO+ includes transfer of current email accounts and remote installation, updates, and monitoring; transfers are offered for servers based on Unix software.Read 9 Oct 2026 · poste.io

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.Read 9 Oct 2026 · poste.io

Plans and prices

Every poste.io plan and price →

Where Specifiction places it

• Mail Server Software#13 of 348.0