Hi,
During the last 10 years of working as a freelance web developer, I worked on hundreds of web applications. So I am confident that I can fix your forms and do the required changes as quickly as possible.
I am not sure what are you using at the moment, but for best email deliverability, I could set up an email API like for example Mailgun, that offers 10.000 free emails per month.
Thank you for taking the time to consider my proposal, and I hope you will choose me for this project. I am looking forward to working with you.
Best regards,
Marius