All incoming emails from website contact form end up to Spam

English
1

I am using Contact Form 7. I have the same CF7/ WP Mail SMTP/ Brevo settings in more than 5 sites, zero issues.

However, all the email-forms that are submitted in one particular website, end up to Spam.

I have disabled/ emabled all plugins, I have copied all TXT values from Brevo to DNS records. No luck.

I am using Cloudflare Turnstile for spam protection. I also get the same problem if I switch to Google Captcha.

I have checked if the domain is blacklisted. It seems OK.

It drives me crazy.

Any idea is highly appreciated!!!

2

Unfortunately, there are no logs at Brevo, cause all emails end up to spam.

3

Even if I mark an email Not Spam, this will end up to spam.

4

It sounds like a potential authentication issue. Here’s a guide of how you can check if the email is authenticated: Email authentication check (SPF, DKIM, DMARC): The easiest way