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02-basic-email-system.md: Clarify the domain name, as we can have either a domain name or internal DNS name #1903

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Mar 8, 2024
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02-basic-email-system.md: Clarify the domain name, as we can have either a domain name or internal DNS name #1903

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2 changes: 1 addition & 1 deletion docs/guides/email/02-basic-email-system.md
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Expand Up @@ -801,5 +801,5 @@ Use the **frank** user to attempt to send an email to the **leeo** user.

### Additional description

* You should have a domain name with MX records pointing to your server.
* You must have a domain name or an internal DNS entry with MX records pointing to your server.
* You should get a SSL certificate via [Let's Encrypt](https://docs.rockylinux.org/guides/security/generating_ssl_keys_lets_encrypt/) or another source.