msmtp

What is msmtp?

msmtp is a compact and efficient SMTP client that enables seamless mail transmission to SMTP servers, simplifying the integration with mail user agents (MUAs). With its versatile configuration options, users can effortlessly manage multiple mail accounts and leverage advanced features such as TLS/SSL support, including client certificates, a wide range of authentication methods, and Internationalized Domain Name (IDN) compatibility

Highlights

• Sendmail-compatible interface, ensuring easy integration with existing MUAs
• Support for multiple mail accounts, allowing users to manage their communication from a single platform
• TLS/SSL support, including client certificates, enhancing the security of email transmissions
• Wide range of authentication methods, catering to diverse email service provider requirements
• Internationalized Domain Name (IDN) support, enabling users to communicate using localized domain names
• Fast SMTP implementation utilizing command pipelining, optimizing the email sending process
• DSN (Delivery Status Notification) support, providing users with delivery status updates
• SOCKS proxy support, allowing seamless email transmission in restricted network environments