Like any other operating system, the Linux OS also allows you to configure your email account(s) on it. The default mail server in the Linux OS is Postfix. This server is more secure and reliable when compared to the Sendmail server. It also makes the email server configuration. The below section explains how to check mail configuration in Linux.
If you’re using the PHP (Hypertext Preprocessor) language and the SMTP server to send emails from your Linux computer, then you can find the SMTP server host details using an email header or the Terminal window.
Now, if you wish to check the SMTP connection status on your Linux computer, then follow the below instructions.
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