Outage in Sage
HMRC secure mailbox - FYI
Minor
March 10, 2026 - Started about 1 month ago
Official incident page
Official incident page
Incident Report
We have identified that customers in the UK are receiving an "It has not been possible to establish a connection to your HMRC Mailbox" error when trying to access the HMRC secure mailbox from Sage 50 Payroll.
If you are experiencing this issue please reach out HMRC’s Online Services Helpdesk and provide the following information:
- Inform them that your are obtaining a ‘Request failed, reason unknown’ error when trying to retrieve notices from the DPS.
- Last date a successful retrieval was made, and the first they obtained this error message.
This will help HMRC support with the investigations.
Components affected
Sage 50 PayrollTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
IDENTIFIED
19 days ago - at 03/27/2026 04:29PM
If you are experiencing issues when connecting to the HMRC Mailbox in Sage 50 Payroll, please follow the instructions in this LINK.
IDENTIFIED
about 1 month ago - at 03/10/2026 11:34AM
We have identified that customers in the UK are receiving an "It has not been possible to establish a connection to your HMRC Mailbox" error when trying to access the HMRC secure mailbox from Sage 50 Payroll.
If you are experiencing this issue please reach out HMRC’s Online Services Helpdesk and provide the following information:
- Inform them that your are obtaining a ‘Request failed, reason unknown’ error when trying to retrieve notices from the DPS.
- Last date a successful retrieval was made, and the first they obtained this error message.
This will help HMRC support with the investigations.
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