I have an interview this month. I have tried sending travel request to and from the interview to the appropriate email and keep getting back the following response. I have tried sending the email from various accounts and servers but with no avail. I have also called the HR personnel and left a message but have also not heard back. Has anyone else encountered this problem of have a solution?

FDCPEXCASI02.flyfrontier.com rejected your message to the following email addresses:


A problem occurred during the delivery of your message, likely due to a bad mail routing configuration. This could be a temporary situation. Please try to resend the message later. If the problem continues, contact your email admin and refer them to the DSN code 5.4.6 in Exchange Online - Office 365 article for tips on how they can resolve this issue.


FDCPEXCASI02.flyfrontier.com gave this error:
Hop count exceeded - possible mail loop