Outage in SMTP2GO
Mimecast Delays
Resolved Minor
Need to monitor SMTP2GO outages?
Stay on top of outages with IsDown. Monitor the official status pages of all your vendors, SaaS, and tools, including SMTP2GO, and never miss an outage again.
Start Free Trial
Outage Details
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".
https://community.mimecast.com/docs/DOC-1369#451
We are investigating the issue urgently. However, we would also recommend that recipients contact Mimecast to report the issue as well.
Thank you.
Latest Updates ( sorted recent to last )
MONITORING
almost 5 years ago - at 09/03/2020 09:00PM
A fix has been implemented and we are monitoring the results.
INVESTIGATING
almost 5 years ago - at 09/03/2020 04:50PM
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".
https://community.mimecast.com/docs/DOC-1369#451
We are investigating the issue urgently. However, we would also recommend that recipients contact Mimecast to report the issue as well.
Thank you.
Latest SMTP2GO outages
Investigating an issue with email processing - about 6 hours ago
Delivery delays to Microsoft-hosted recipients - 15 days ago
EU Routing Issue - about 1 month ago
Network Connectivity Issues - about 1 month ago
Investigating database connection issue - 2 months ago
Be the first to know when SMTP2GO and other third-party services go down
With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.
Start free trialNo credit card required · Cancel anytime · 4200 services available
Integrations with
