Custom domains and DNS

Articles that help you add custom domains to Thundermail via DNS records.

How do SPF, DKIM, and DMARC work together to protect my domain from spam and spoofing?
Combined, these three types of DNS records act as an official security system...
How do I use an alias or custom domain in Webmail?
Want to send emails using a custom domain or a personal alias instead of your...
What is MTA-STS, and when do I need to publish it?
MTA-STS (Mail Transfer Agent Strict Transport Security) is an internet standa...
What is DMARC?
DMARC is a very short acronym for a very long security protocol name: Domain-...
How do I set up a custom domain and configure DNS in Thundermail?
Would you like to use your own custom domain for your Thundermail account? Yo...