Since our last update mail has continued to flow normally and without delay. We however will continue to monitor everything throughout the rest of today and this weekend to ensure it continues. A root-cause analysis will be drafted and posted after full exploration of the issue. We understand the frustration over such an incident and sincerely apologize for all the inconveniences i may have caused.
We are seeing confirmation the corrective action our engineers and development staff implemented is continuing to resolve the mail delay issue. There is still some minor queues still being worked through and sender's SMTP retry periods to reach, but in general, mail flow has returned to normal. We are investigating the root cause and working to create a permanent fix. We will continue to update this throughout the day.
With the normal increase of traffic this morning, it has become apparent our mitigation efforts implemented yesterday were not sufficient. We are currently testing additional vectors to prevent latency. Testing has been deployed and being evaluated currently. We will continue to update this page as we gather data.