OpenSMTPD vs sSMTP

Struggling to choose between OpenSMTPD and sSMTP? Both products offer unique advantages, making it a tough decision.

OpenSMTPD is a Network & Admin solution with tags like smtp, mail-server, email, linux, bsd, open-source.

It boasts features such as Open source SMTP server, Supports SMTP over TLS/SSL, Milter support for spam and virus filtering, Daemon mode for background operation, IPv4 and IPv6 support, SMTP AUTH login, plain and cram-md5, STARTTLS support, DKIM signing and verification, SMTP pipelining, Queue control and delivery modes, Virtual domains and users, SMTP client mode and pros including Free and open source, Secure - supports encryption and authentication, Extensible and customizable via filters, Lightweight and high performance, Cross-platform - runs on Linux and BSD.

On the other hand, sSMTP is a Network & Admin product tagged with smtp, email, client, linux.

Its standout features include Lightweight SMTP client for sending email, Does not receive or store email messages, Supports SMTP authentication, Easy to configure and install, Works without a full mail server, and it shines with pros like Simple and easy to use, Small resource footprint, Wide platform support, Open source and free, Allows scripts and apps to send email.

Feature	OpenSMTPD	sSMTP
Overall Score	N/A	N/A
Primary Category	Network & Admin	Network & Admin

Product Overview

OpenSMTPD

Description: 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.

sSMTP

Description: sSMTP is a lightweight SMTP client that can be used to send email from Linux servers. It allows Linux machines without a full mail server to relay mail through an external SMTP server, enabling applications and scripts to automatically send emails.

Key Features Comparison

OpenSMTPD Features

• Open source SMTP server
• Supports SMTP over TLS/SSL
• Milter support for spam and virus filtering
• Daemon mode for background operation
• IPv4 and IPv6 support
• SMTP AUTH login, plain and cram-md5
• STARTTLS support
• DKIM signing and verification
• SMTP pipelining
• Queue control and delivery modes
• Virtual domains and users
• SMTP client mode

sSMTP Features

• Lightweight SMTP client for sending email
• Does not receive or store email messages
• Supports SMTP authentication
• Easy to configure and install
• Works without a full mail server

Pros & Cons Analysis

OpenSMTPD

Pros

• Free and open source
• Secure - supports encryption and authentication
• Extensible and customizable via filters
• Lightweight and high performance
• Cross-platform - runs on Linux and BSD

Cons

• Limited user interface/admin dashboard
• Steeper learning curve than commercial options
• Requires more technical expertise to setup and manage
• Lacks some enterprise features found in commercial SMTP servers

sSMTP

Pros

• Simple and easy to use
• Small resource footprint
• Wide platform support
• Open source and free
• Allows scripts and apps to send email

Cons

• Limited functionality compared to full mail servers
• No email storage or mailbox capabilities
• Lacks advanced email features like encryption
• Requires an external SMTP server

Pricing Comparison

OpenSMTPD

• Open Source

sSMTP

• Open Source