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 **Self-Hosting** | Advanced | Self-hosting your own mail server is not recommended for non-advanced users, since correctly securing it is critical yet requires strong networking knowledge - [read more](https://www.reddit.com/r/selfhosted/comments/6h88qf/on_selfhosted_mail_servers/). That being said, if you run your own mail server, you will have full control over your emails. [Mail-in-a-box](https://github.com/mail-in-a-box/mailinabox) and [docker-mailserver](https://github.com/tomav/docker-mailserver) are ready-to-deploy correctly-configured mail servers that provide a good starting point
 **Always use TLS Ports** | Advanced | There are SSL options for POP3, IMAP, and SMTP as standard TCP/IP ports. They are easy to use, and widely supported so should always be used instead of plaintext email ports. By default, the ports are: POP3= 995, IMAP=993 and SMTP= 465
 **DNS Availability** | Advanced | For self-hosted mail servers, to prevent DNS problems impacting availability- use at least 2 MX records, with secondary and tertiary MX records for redundancy when the primary MX record fails
-**Prevent DDoS and Brute Force Attacks** | Advanced | For self-hosted mail servers (specifically STMP), limit your total number of simultaneous connections, and maximum connection rate to reduce the impact of attempted bot attacks
+**Prevent DDoS and Brute Force Attacks** | Advanced | For self-hosted mail servers (specifically SMTP), limit your total number of simultaneous connections, and maximum connection rate to reduce the impact of attempted bot attacks
 **Maintain IP Blacklist** | Advanced | For self-hosted mail servers, you can improve spam filters and harden security, through maintaining an up-to-date local IP blacklist and a spam URI realtime block lists to filter out malicious hyperlinks. You may also want to activate a [reverse DNS lookup](https://en.wikipedia.org/wiki/Reverse_DNS_lookup) system
 
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