Email Delivery Issue to Hotmail.com and Outlook.com

As of July 8 there has been no re-occurrence of the issues. We have confirmed service is fully restored. This incident is now resolved.

Email delays to recipients at Hotmail.com or Outlook.com are continuing to occur.

Our engineering team is working closely with Microsoft to drive this issue to resolution. We are requesting affected customers to open a case directly with Microsoft to have the rate-limiting removed. We will provide further updates as new information becomes available.

Email delays to recipients at Hotmail.com or Outlook.com are continuing to occur.

Our engineering team is working closely with Microsoft to drive this issue to resolution. We are requesting affected customers to open a case directly with Microsoft to have the rate-limiting removed. We will provide further updates as new information becomes available.

Email delays to recipients at Hotmail.com or Outlook.com are continuing to occur.

Our engineering team is working closely with Microsoft to drive this issue to resolution. We are requesting affected customers to open a case directly with Microsoft to have the rate-limiting removed. We will provide further updates as new information becomes available.

Email delays to recipients at Hotmail.com or Outlook.com are again being experienced.

Our engineering team is working closely with Microsoft to drive this issue to resolution. We will provide further updates as new information becomes available.

We are still monitoring this issue. New emails sent to Hotmail.com and Outlook.com are being delivered without delay. Previously queued emails to those domains are still in the delivery process.

We continue to work closely with Microsoft as our teams drive this issue to resolution.

This email delay issue has been identified and remediated. New email sent to Hotmail.com and Outlook.com are being delivered without delay. Delivery of queued email to Hotmail.com and Outlook.com is in process.

We are continuing to work closely with Microsoft as our teams monitor this issue to closure

We are continuing to work closely with Microsoft to address the delays. We will provide further updates as new information is discovered.

As mentioned previously, our engineers removed the affected service components from production to avoid further service disruption. Mail which was sent before the component was removed has been queued until the throttling is cleared. Any new mail being sent should not be delayed. We are requesting affected customers to open a case directly with Microsoft and request rate-limiting to be removed.

We are currently experiencing issues delivering emails to a small subset of customers/recipients using Hotmail.com and Outlook.com email addresses. The result is that emails are queued for delivery. Our investigation shows the issue is occurring due to Microsoft throttling our service in part of the North American region. As a workaround, our engineers have removed the affected service components from production to avoid further service interruption. However, any existing email will remain queued till the throttling is cleared.

We are working with Microsoft to address the situation. We are requesting affected customers to open a case directly with Microsoft and request rate-limiting to be removed.

Symantec will continue to hold emails based on standard and custom retry email schedules configured by our customers.

We will provide further updates once we have more information from Microsoft.