Problem: My domain email message always being sent to the trash bin in Gmail with a notification “Why is this message in spam”. And you have to click “Report not spam” so that you can view the image.
It is because your email isn’t authenticated. Below solution using SPF to authenticate email.
Solution: First, go to the domain DNS to add below record if you are using Zoho:
then wait for about 30mins. Then go to SPF panel to validate the domains
Then your message from that email will not be spam anymore.