Fix guide
Switch on DKIM signing for your Google Workspace domain in about ten minutes.
A Google Workspace super admin login and access to your domain’s DNS. It takes about ten minutes, plus a short wait for DNS. Add the SPF record for Google Workspace at the same time.
Open the Admin console. Go to Apps › Google Workspace › Gmail › Authenticate email.
Pick your domain and generate a record. Click Generate new record, choose a 2048-bit key and keep the selector as google.
Copy the two values. The DNS host name is google._domainkey and the TXT value starts with v=DKIM1; k=rsa; p=.
Add a TXT record at your DNS provider (in GoDaddy, see how to add a TXT record in GoDaddy). Use the host name and value exactly as shown. Some providers split long values into parts automatically; that is fine.
Click Start authentication. Wait until the DNS record shows up (often minutes, up to 48 hours), then return to Authenticate email and click Start authentication.
A few older providers limit TXT records to 255 characters. Split the key into two quoted strings in the same record, or generate a 1024-bit key instead and upgrade later.
Check it worked
Enter your domain. The checker tries the google selector first for Google Workspace domains.
