Luke Smith
4 years ago
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| @@ -46,12 +46,16 @@ actually works perfectly. | |||||
| 2. **A Let's Encrypt SSL certificate for your site's `mail.` subdomain**. | 2. **A Let's Encrypt SSL certificate for your site's `mail.` subdomain**. | ||||
| Create a nginx/apache site at `mail.<yourdomain.com>` and get a certificate | Create a nginx/apache site at `mail.<yourdomain.com>` and get a certificate | ||||
| for it with Let's Encrypt's [Certbot](https://certbot.eff.org/). | for it with Let's Encrypt's [Certbot](https://certbot.eff.org/). | ||||
| 3. - You need two little DNS records set on your domain registrar's site/DNS | |||||
| 3. You need two little DNS records set on your domain registrar's site/DNS | |||||
| server: (1) an **MX record** pointing to your own main domain/IP and (2) a | server: (1) an **MX record** pointing to your own main domain/IP and (2) a | ||||
| **CNAME record** for your `mail.` subdomain. | **CNAME record** for your `mail.` subdomain. | ||||
| 4. `apt purge` all your previous (failed) attempts to install and configure a | 4. `apt purge` all your previous (failed) attempts to install and configure a | ||||
| mailserver. Get rid of _all_ your system settings for Postfix, Dovecot, | mailserver. Get rid of _all_ your system settings for Postfix, Dovecot, | ||||
| OpenDKIM and everything else. This script builds off of a fresh install. | OpenDKIM and everything else. This script builds off of a fresh install. | ||||
| 5. Some VPS providers block port 25 (used to send mail). You may need to | |||||
| request that this port be opened to send mail successfully. Although I have | |||||
| never had to do this on a Vultr VPS, others have had this issue so if you | |||||
| cannot send, contact your VPS provider. | |||||
| ## Post-install requirement! | ## Post-install requirement! | ||||