Hello,
I will configure an email application like SendinBlue or Mailerlight in front end and PowerMTA in the back end mailing with all mailing authentications like SPF, DKIM, DMARC, RDNS, IP rotation, etc.
I have more than 5 years of experience in bulk mailing, email marketing, SMTP'S Power MTA, Interspire, Sendgrid, Mailwizz, Active Campaign, Mautic, Mumara, Sendy, AWS SES and Oempro mailing application with secured server set up.
I would like to have a word with you to make things clear.
Thank You