Hey there,
After reviewing your project description it's clear that you are looking for a G Suite Administrator.
I'm very experienced with System Administration, Network Administration, Linux Administration, G Suite configuration, SMTP Server configuration, SMTP Authentication (SPF, Dkim, Dmarc)
I'll be happy to do this project for you.
Thanks in advance for giving the opportunity to working with you.
Have a good day.
Best Regards,
Sirajum Munir.