My emails keep getting in the block list

I have my custom domain and everything works except my personal email.

i updated the website and now the personal email is not working.

I have asked AI CHATBOT on support and he said the netlify need to fix it

I have used two emails and both have got blocked.

Here is my website.
Here is the email that’s not sending the forms responses ; avneetbhambra010@gmail.com