Hello,
I will create all the records A Records, AAA Record, SPF, DKIM, DMARC, RDNS, IP rotation for bulk mailing as your requirement.
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 discussion with you to make things crystal clear.
Thank You