Why does sending email with Catalyst Mail fail with a verification pending error even though I added my sender address?

Catalyst CloudScale Mail sends email only after both the sender email address and its domain are verified, and the domain is authenticated with its SPF and DKIM records. Sending before then throws an exception, and no email is sent. A domain that shows pending has not finished one of these steps.

1. Go to Notify → Mail in the Catalyst CloudScale console and open the Domain tab. If your domain isn’t listed, click Add Domain, enter an email address on that domain and click Create.

2. Click Verify Code, enter the code sent to that address and click Confirm.

3. Click Validate, add the SPF and DKIM record codes shown to your domain host’s DNS settings, then click Authenticate.

4. In Email Configuration, click Click to confirm for the sender address, enter the confirmation code and click Confirm.

5. Send again once the domain shows as authenticated and the sender address shows Verified.

Refer to the Domains help page and the Send Emails help page for more information.