Email - ongoing delays to external email delivery resolved, 06/04/2019 09:52AM BST Email


Notification history

06/04/2019 09:52AM BST

06/03/2019 09:50AM BST
Since the corrective action taken on Thursday morning, the flow of email messages to and from external sources has been stable.

Information Services will continue to monitor the service closely.


05/31/2019 09:37AM BST
As of 11am on Thursday 30 May 2019 email from external sources has been arriving into internal inboxes normally.
 
This follows interventions made by Information Services.
 
Information Services continues to closely monitor the email service.
 
Background:
 
The University was alerted to a Microsoft issue on Wednesday 22 May 2019 which resulted in inbound emails failing to deliver to internal recipients.
 
On Friday 24 May 2019 Microsoft had fixed the external email issue by which time it is estimated that there was a backlog of 200,000 emails left to be processed by the University's internal email system.
 
Our internal systems found it difficult to process the day to day email traffic while catching up with the backlog. As a result significant delays to external emails reaching internal inboxes was experienced by a number of users.
 
Internal and outbound email continued to work normally during this period.

05/30/2019 02:06PM BST
Email users may continue to experience delays in receiving emails to their @nottingham.ac.uk account from external sources.

This follows on from an earlier Microsoft issue on Wednesday 22 May 2019 which resulted in delays in all email traffic and inbound emails failing to deliver to internal recipients.This was fixed later in the week, but left a large number of emails to be processed by our internal system.

As a result we have experienced significant delays to external emails reaching internal inboxes. During this period, internal and outbound email have been working normally.

Information Services is taking this issue very seriously and has a dedicated team of specialists working to resolve these delays. We continue to monitor the situation and update this status page when appropriate.
05/29/2019 11:37AM BST
High volumes of email continue to be received as mail providers attempt to re-deliver messages that failed last week.

This did lead to a further delay yesterday however was addressed.

Information Services will continue to closely monitor the service until all related issues have been resolved.
05/29/2019 10:45AM BST
High volumes of email continue to be received as mail providers attempt to re-deliver messages that failed last week.

This did lead to a further delay yesterday however was addressed.

Information Services will continue to closely monitor the service until all related issues have been resolved.
05/28/2019 08:03AM BST
Internal and external email has continued to flow freely from and to university email accounts since Saturday.

Depending on the mail provider, it's possible that some external messages sent to a university email address will not be delivered. Some providers generate 'non delivery' alerts when a message cannot be delivered however this does not apply to all.

Those that do generate alerts also set a limit on the re-sending of messages which cannot be delivered and it's possible that some senders will need to re-send email messages that they sent last week. It's not possible to identify which specific messages this applies to however please be aware that Microsoft confirmed that the issue first arose globally at 20.15 on Tuesday 21st May.
05/26/2019 10:01AM BST
Checks this morning (Sunday 26th May) indicate that internal and external email continues to flow freely.

Information Services will continue to monitor the service and provide further updates here.
05/25/2019 06:25PM BST
Following previous updates, we can now confirm the build-up of external email messages has successfully been cleared this afternoon (Saturday 25 May).

Please note external emails may not be delivered in the order in which they were sent.

Internal email is flowing freely and external email is now processing as usual. Service will continue to be monitored.

Please accept our sincere apologies for the inconvenience this has caused.
05/25/2019 10:09AM BST
The primary cause of the issue that prevented external email messages from being delivered has now been resolved by Microsoft.

Internal email is flowing freely. The resulting build-up of external email messages is being processed however, we expect it to take at least a further 24 hours for it to be cleared.

Information Services is working with Microsoft to increase the flow of inbound messages and will continue to monitor and maintain the service over the weekend.

Please accept our sincere apologies for the inconvenience this has caused.

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