Postfix vs SmarterMail
Postfix
postfix.org
SmarterMail
smartertools.comSide by side
| Figure | Postfix | SmarterMail |
|---|---|---|
| Price from | — | $41.67/mo |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | Yes | — |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 0 | 5 |
| Spec score · Email Server Software | 7.2 (#21) | 8.0 (#11) |
| Spec score · Mail Server Software | 7.2 (#30) | 8.0 (#14) |
| 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. |
Plans
SmarterMail
- 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
In their own words
SmarterMail
SmarterMail has no write-up on Specifiction yet; its figures are above.