Postfix
5.6#23 in email server softwareLinuxmacOSSelf-hosted
VisitPostfix vs Stalwart Mail Server
Stalwart Mail Server
7.2#4 in mail server softwareFrom $1.09 a yearFree planWebAPILinuxmacOS
VisitWhat both publish
| Fact | Postfix | Stalwart Mail Server |
|---|---|---|
| Deployment | Postfix is built from source and runs on UNIX-like systems; operating-system and appliance vendors also distribute ready-to-run versions. | Stalwart can run as one node or as a cluster across regions, and its site describes it as designed to scale to millions of mailboxes. |
| Integrations | The add-on directory lists third-party tools for authentication, content filtering, policy services, webmail, and other functions; entries are maintained by their authors without formal evaluation. | Listed integrations include LDAP, Active Directory, OIDC, SQL directories, RocksDB, FoundationDB, PostgreSQL, MySQL, SQLite, S3-compatible storage, Azure Blob, and search engines including Meilisearch, Elasticsearch, and OpenSearch. |
| Product | Postfix is Wietse Venema’s mail server, created as an alternative to Sendmail. | Stalwart is an open-source mail and collaboration server for email, calendars, contacts, and shared files. |
Postfix plans
No prices published.
Stalwart Mail Server plans
- CommunityFree
- Enterprise: 25–499 mailboxes$2.40 a year
- Enterprise: 500–999 mailboxes$2.04 a year
- Enterprise: 1,000–4,999 mailboxes$1.74 a year
- Enterprise: 5,000–10,000 mailboxes$1.48 a year
- Enterprise: 10,000–49,999 mailboxes$1.25 a year
Pick Postfix if…
You want what its maker publishes above — check its page for the details.
Pick Stalwart Mail Server if…
You want what its maker publishes above — check its page for the details.