Best OpenSMTPD Alternatives (24)
Looking for a OpenSMTPD alternative? We've compiled the best options based on user reviews, features, and pricing to help you find the right fit.
What is OpenSMTPD? OpenSMTPD is an open source SMTP server daemon for Linux and BSD operating systems. It aims to be a free, secure, and featureful SMTP server for both hosting providers and end users.
Top Alternatives to OpenSMTPD
Courier-MTA
Open SourceCourier-MTA is an open source mail transfer agent (MTA) used for sending, receiving, and routing email. It is designed to …
Go-Guerrilla
Open SourceGo-Guerrilla is an open source email delivery platform written in Go. It is designed to simplify sending high volume emails …
Microsoft SMTP Server is a software component included in Windows Server that enables the server to send and receive email …
Dragonfly Mail Agent
Open SourceDragonfly Mail Agent is an open source email client and personal information manager. It has basic email features like support …
More Similar Software
OpenSMTPD Overview
OpenSMTPD is an open source SMTP server daemon for Linux and BSD operating systems. It was created in 2015 as a secure alternative to existing SMTP server solutions.Key features of OpenSMTPD include:Support for the SMTP, SMTP over TLS (SMTPS), and SMTP over SSL (SMTP/SSL) protocolsModular and secure codebase written in C languageBuilt-in support for DKIM (DomainKeys Identified Mail) email signing and verificationFlexible configuration through text files, no database requiredVirtual hosting for running multiple domains from one serverIP address and domain …
Pricing: Open Source
Quick Comparison
| Software | Pricing | Score |
|---|---|---|
| OpenSMTPD | Open Source | — |
| sSMTP | Open Source | — |
| Inbucket | Open Source | — |
| Courier-MTA | Open Source | — |
| Go-Guerrilla | Open Source | — |
| Sendmail | Open Source | — |
| Postfix | Open Source | — |
| Exim | Open Source | — |
| Microsoft SMTP Server | N/A | — |
| NikaMail | Open Source | — |
| Haraka | Open Source | — |
Read full OpenSMTPD review → | Browse Network-Admin software