How do I set up DKIM at Namecheap for Google Workspace?

What does DKIM do?

It adds a signature to each message your domain sends. A mail server checks the signature against a key published in your DNS, so a message changed or forged on the way fails.

Where does Google Workspace make the key?

In the Google Admin console, go to Apps, then Google Workspace, then Gmail, and open Authenticate email. Select your domain and generate a new record. Choose a 2048-bit key if your DNS host takes one, and 1024-bit if it does not. Keep the selector google. Do not select Start authentication yet.

google._domainkey

v=DKIM1;

How do I add it at Namecheap?

1. Sign in to Namecheap and open Domain List.
2. Click Manage beside your domain and open the Advanced DNS tab.
3. Click Add New Record and choose TXT Record.
4. Type google._domainkey in Host.Leave your domain name out: it is added for you.
5. Paste the whole value Google shows in Value, exactly as copied.
6. Click Save all changes.

In our words, from Namecheap: adding a TXT record, read 14 October 2026. If a screen has changed since, follow the host's own page.

How do I turn signing on?

Go back to Authenticate email in the Admin console and select Start authentication. The status changes to say that email is being authenticated with DKIM. If it does not, wait for your DNS change to be seen and try again.