Workmail - undelivered inbound emails

Hi,

The problem sounds like you have multiple MX records for your domain. One MX record for WorkMail and another MX record for a different mail service. This is not possible, you can only have MX record(s) for 1 mail service. If you have records for multiple mail services, only 1 service will receive the email and if it does not know the user it will bounce the message.

Kind regards, Robin