Set up a PHP script of the mail sender and put on the hosting or VDS

I am looking for a person with PHP experience, knowledge of hosting, VDS and extensive experience and understanding in setting up mail and records (DKIM, DMARC, SPF)

I need to configure my PHP script of the mailer and put it on the hosting in the VDS so that the letters do not go into spam and reach my TK and criterion.
Please respond:
1) People with experience. Who has an understanding of how everything works, but no experience immediately say that you will not do and just waste my and your time.
2) I will not leave an advance payment if there is even the slightest doubt that your account is not fake.