During today's migration window, the SMTP service on the old infrastructure was stopped earlier than expected. This resulted in approximately 60 minutes of service disruption for customers specifically using srv02.exofilter.com for outgoing mail.
After the service was brought online on the new infrastructure and DNS changes had propagated, the new mail server began handling all outgoing traffic as expected.
We apologize for the disruption caused by this migration and any impact it may have had on your operations. If you have any questions, please contact our support team.