I am working with a client who sends out emails to clients (password reset, employee invitations, etc.) using Mailgun, but we are getting a some emails blocked due to reverse DNS lookups for the Mailgun ip address.
I have looked into using AWS Simple Email Service (SES) to send these emails instead, but haven't found any documentation on reverse DNS lookups for this service. I know EC2 has reverse DNS lookups (with Route53), but that EC2 ip address ranges are usually blocked for email due to spam concerns-- so it looks like we can't setup our own mail server using EC2.
Is there a way to setup reverse DNS for AWS SES or will we have the same problem of reverse DNS lookup failures if we switch to AWS SES?