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this post was submitted on 22 Apr 2024
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If you follow the ISPMail guide at https://workaround.org/ you'll be safe.
That's called an open relay and websites like https://mxtoolbox.com/diagnostic.aspx can test for it.
Either way your biggest issue won't be that, if you're running on a residential internet connection the IP is already flagged as such and will have a very low reputation with other e-mail providers causing Microsoft, Google and any other large provider will simply refuse your email. You'll also need reverse DNS for your IP pointing at the domain you're using that your ISP is most likely not going to provide.
What do you mean reserve DNS?
Pretty sure they meant reverse dns :)
Yes, reverse DNS. Typo there.