Postfix
5.5#30 in mail server softwareLinuxmacOSSelf-hosted
VisitPostfix vs SmarterMail
SmarterMail
7.4#3 in mail server softwareFrom $500 a yearFree planAndroidiOSWebLinux
VisitWhat both publish
| Fact | Postfix | SmarterMail |
|---|---|---|
| Deployment | Postfix is built from source and runs on UNIX-like systems; operating-system and appliance vendors also distribute ready-to-run versions. | SmarterMail is available for Linux and Windows and has a Docker version; the download page lists supported Linux distributions and Windows Server 2016, 2019, 2022, and 2025+. |
| 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. | The Marketplace lists Dropbox, Google Drive, OneDrive, ownCloud, LeitzCloud, Rocket.Chat, ChatGPT, Collabora Online, and OnlyOffice integrations. |
| Intended users | The project describes postfix-users as a forum for people using Postfix and postfix-devel as a list for those designing, implementing, or maintaining its source code. | SmarterTools describes SmarterMail as suitable for enterprises, businesses, web hosts, and ISPs, while Professional is aimed at smaller companies or individuals. |
| Product | Postfix is Wietse Venema’s mail server, created as an alternative to Sendmail. | SmarterMail is an email, groupware, and collaboration server positioned as an alternative to Microsoft Exchange. |
Postfix plans
No prices published.
SmarterMail plans
- SmarterMail FreeFree
- SmarterMail High Availability — Hub$150 a month
- SmarterMail High Availability — Node$250 a month
- SmarterMail Professional (50 mailboxes)$500 a year
- SmarterMail Enterprise (50 mailboxes)$700 a year
Pick Postfix if…
You want what its maker publishes above — check its page for the details.
Pick SmarterMail if…
You want what its maker publishes above — check its page for the details.