docs: Fix typo on usage page (#4294)

Co-authored-by: Casper <casperklein@users.noreply.github.com>
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Pooyan Khanjankhani 2024-12-23 05:08:46 +03:30 committed by GitHub
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@ -48,7 +48,7 @@ We will later dig into DKIM, DMARC & SPF, but for now, these are the records tha
- The **MX record** tells everyone which (DNS) name is responsible for e-mails on your domain. - The **MX record** tells everyone which (DNS) name is responsible for e-mails on your domain.
Because you want to keep the option of running another service on the domain name itself, you run your mail server on `mail.example.com`. Because you want to keep the option of running another service on the domain name itself, you run your mail server on `mail.example.com`.
This does not imply your e-mails will look like `test@mail.example.com`, the DNS name of your mail server is decoupled of the domain it serves e-mails for. This does not imply your e-mails will look like `test@mail.example.com`, the DNS name of your mail server is decoupled of the domain it serves e-mails for.
In theory, you mail server could even serve e-mails for `test@some-other-domain.com`, if the MX record for `some-other-domain.com` points to `mail.example.com`. Your mail server could also handle emails for `test@some-other-domain.com`, if the MX record for `some-other-domain.com` points to `mail.example.com`.
- The **A record** tells everyone which IP address the DNS name `mail.example.com` resolves to. - The **A record** tells everyone which IP address the DNS name `mail.example.com` resolves to.
- The **PTR record** is the counterpart of the A record, telling everyone what name the IP address `11.22.33.44` resolves to. - The **PTR record** is the counterpart of the A record, telling everyone what name the IP address `11.22.33.44` resolves to.