Side by side
OpenSMTPD vs poste.io
Both stand on mail server software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxMacSelf-hosted
Visit OpenSMTPD Free plan APILinuxSelf-hosted+1
Visit poste.io The facts
| OpenSMTPD | poste.io | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac, Self-hosted | API, Linux, Self-hosted, Web |
| Lowest paid plan | Free or on request | PRO: $349 a year |
| Plans published | 1 | 3 |
| Maker | Not published | Not published |
| Website | opensmtpd.org | poste.io |
| On mail server software | #19 of 34 | #15 of 34 |
Alternatives to OpenSMTPD Alternatives to poste.io The whole list