Mail Settings

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...

How do I connect my Thundermail calendar on Android?

Thundermail includes one default CalDAV calendar. Here are the steps to conne...

How do I connect my Thundermail calendar on iOS?

Thundermail includes one default CalDAV calendar. Here are the steps to conne...

How do I set up Thundermail in Outlook?

The first step before adding your Thundermail account to Outlook on any devic...

How do I set up a catch-all alias?

A catch-all email alias is a bit like a safety net for your custom domain!If ...

How do I set up Thundermail in the Thunderbird Android app?

Take Thundermail on-the-go with our official Android app!Installing and addin...

How do I connect or share my Thundermail contacts?

When adding a Thundermail account to Thunderbird or other email clients, that...

How do I connect or share my Thundermail calendar?

When adding a Thundermail account to Thunderbird or other email clients, that...

How do I set up Thundermail on MacOS?

For ease of use, we recommend setting up Thundermail in the official Thunderb...

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...

How do I set up Thundermail on iOS?

Until we’ve launched our official iOS Thunderbird app, we have detailed instr...

How do I create an app password?

You can create an app password directly from your Thundermail account dashboa...

How do I set up email aliases?

An email alias is an email address that forwards to another email address. Fo...

What is IMAP?

IMAP stands for Internet Message Access Protocol. It allows an email client (...

What is JMAP?

JMAP stands for JSON Meta Application Protocol. It’s a robust way to receive ...

What is SMTP?

SMTP stands for Simple Mail Transfer Protocol. It enables an email client (su...