Mimecast Delays
Incident Report for SMTP2GO
We have put measures in place to work around Mimecast's issue.
Posted Sep 03, 2020 - 21:27 UTC
A fix has been implemented and we are monitoring the results.
Posted Sep 03, 2020 - 21:00 UTC
We are seeing some delays with emails sent to Mimecast users. It appears Mimecast is sometimes incorrectly producing the error "451 Open relay not allowed".


We are investigating the issue urgently. However, we would also recommend that recipients contact Mimecast to report the issue as well.

Thank you.
Posted Sep 03, 2020 - 16:50 UTC
This incident affected: Email sending (SMTP service).