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msmtp is a simple and efficient mail transfer agent with support for various authentication methods and encryption. It is a reliable solution for sending emails from a computer.
Postfix is an open-source mail-transfer agent used to send, receive, and relay email on Unix-like systems. It is designed for secure, reliable...
Free, open source
Exim is a message transfer agent (MTA) developed at the University of Cambridge for use on Unix systems connected to the Internet.
Sendmail is a general purpose internetwork email routing facility that supports many kinds of mail-transfer and delivery methods.
Microsoft Exchange Server is a popular email and calendaring server software developed by Microsoft.
Pricing varies based on the edition and deployment model.
cURL is a command-line tool and library for transferring data with URLs. It supports various protocols and is widely used for automation,...
sSMTP is a simple and secure program for sending outgoing email from a computer to a mailhub.
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