References

Image www.sendmail.org/The Sendmail home page. Here you can find configuration information and FAQs regarding the Sendmail MTA.

Image www.postfix.org/The Postfix home page. If you are using the Postfix MTA, you can find documentation and sample configurations at this site.

Image help.ubuntu.com/community/Postfix—Ubuntu community documentation for Postfix.

www.qmail.org/The home page for the Qmail MTA. It contains documentation and links to other resources ...

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