To resolve your login issue with Anchor and the invalid email message, you can follow these steps:

1. Verify Your Email:
Ensure that you are using the correct email address associated with your Anchor account. Sometimes, users may have multiple email addresses or may have changed their email since signing up.

2. Reset Your Password:
If you're certain the email is correct, attempt to reset your password. Go to the Anchor login page and click on "Forgot Password?" to receive a reset link. If you do not receive an email, check your spam/junk folder.

3. Try Alternative Emails:
If you're still having trouble, it might be worth trying other email addresses if you have previously used or signed up with multiple.

4. Check for Account Migration:
Since Anchor has transitioned to Spotify for Podcasters, ensure that your account migrated properly. This new integration may require you to log in using your Spotify account credentials. You can learn more about this integration here - [learn more].

5. Contact Spotify Support:
If you are unable to solve the problem, fill out the contact form provided on Spotify's support page. Explain that your email is showing as invalid when trying to log in to Anchor, and they should assist you in updating or verifying your email address - learn more - [learn more].

6. Clear Browser Cache:
Sometimes, clearing your browser's cache and cookies can resolve login issues. Go to your browser settings and find the option to clear cache.

7. Use a Different Browser or Device:
If the issue persists, try logging in from a different web browser or device to rule out any browser-related problems.

Following these steps should help you troubleshoot and resolve the login issue you are facing with Anchor. If these solutions do not work, reaching out to customer support is your best option.