How do you normally send email from that host?

If it's a linux box, it probably has sendmail locally. That's the SMTP server you'd use.

If it's Windows you'd probably use a remote SMTP server to relay your traffic. Check the config of a working email client and you'll probably see how it's handled in your environment.

In reply to Re^3: Send email error by pileofrogs
in thread Send email error by padawan_linuxero

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