7oaks Posted March 1, 2023 Share Posted March 1, 2023 Has anyone had emails similar to these in the last hour? or could someone point me in the right direction if they've seen this before. The following message to <xxxxx@xxxxx> was undeliverable. The reason for the problem: 5.1.0 - Unknown address error 550-'5.4.1 Recipient address rejected: Access denied. AS(201806281) Invalid Date' Link to comment Share on other sites More sharing options...
Alisha Posted March 1, 2023 Share Posted March 1, 2023 Yes, we've had lots of undeliverable messages too. This is the mail system at host live.hornbill.com. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message. Link to comment Share on other sites More sharing options...
Steve Giller Posted March 1, 2023 Share Posted March 1, 2023 We have also seen some issues delivering to Customers with Exchange Online mailboxes, these seem to have cleared up now - are you still seeing issues or are things back to normal? Link to comment Share on other sites More sharing options...
Alisha Posted March 2, 2023 Share Posted March 2, 2023 All resolved, thanks Steve. Link to comment Share on other sites More sharing options...
7oaks Posted March 2, 2023 Author Share Posted March 2, 2023 Tested successfully this morning too thanks. Link to comment Share on other sites More sharing options...
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