Fix WordPress Contact Form Submission Emails

Emails triggered by contact form submission are not reaching inboxes even though the messages appear in the site’s backend. I have already run through the usual checks:

• Verified SMTP credentials with the WP Mail SMTP plugin. Test emails arrive without issue.
• Tested the form in both Contact Form 7 and WPForms with the same result.
• Switched “send-to” addresses, disabled security plugins, and confirmed nothing lands in spam.
• Database shows each entry, so the form itself is working.

Please come up with a fix so that contact form submissions aren't sent and received to the inbox.