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Make README clearer about PTR record

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lesha 2020-10-18 03:22:57 +00:00 committed by GitHub
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@ -51,9 +51,10 @@ actually works perfectly.
**CNAME record** for your `mail.` subdomain. **CNAME record** for your `mail.` subdomain.
4. **A Reverse DNS entry for your site.** Go to your VPS settings and add an 4. **A Reverse DNS entry for your site.** Go to your VPS settings and add an
entry for your IPV4 Reverse DNS that goes from your IP address to entry for your IPV4 Reverse DNS that goes from your IP address to
`mail.<yourdomain.com>`. If you would like IPV6, you can do the same for `<yourdomain.com>` (not mail subdomain). If you would like IPV6, you can do
that. This has been tested on Vultr, and all decent VPS hosts will have the same for that. This has been tested on Vultr, and all decent VPS hosts
a section on their instance settings page to add a reverse DNS PTR entry. will have a section on their instance settings page to add a reverse DNS PTR
entry.
You can use the 'Test Email Server' or ':smtp' tool on You can use the 'Test Email Server' or ':smtp' tool on
[mxtoolbox](https://mxtoolbox.com/SuperTool.aspx) to test if you set up [mxtoolbox](https://mxtoolbox.com/SuperTool.aspx) to test if you set up
a reverse DNS correctly. This step is not required for everyone, but some a reverse DNS correctly. This step is not required for everyone, but some