TenantAccessBlockedError

Question

Assunto: Exchange Online / Outlook Web – TenantAccessBlockedError – solicitar desbloqueio do tenant

Descrição: Estamos com falha ao acessar o Outlook (OWA). O erro apresentado é HTTP 500 com Microsoft.Exchange.Data.Storage.TenantAccessBlockedException e TenantAccessBlockedError, indicando bloqueio no nível do tenant.

Tenant / Domínio

• Tenant ID: pii removed
• Domínio afetado: pii removed

Detalhes do erro (para correlação de backend)

• UTC Date: 2026-02-03T02:03:50.320Z
• Session Id: pii removed
• Client Id: pii removed
• Client Version: pii removed
• EFE: pii removed
• Header: X-OWA-Error
• EWS ver: 15.20.9564.16
• Error: TenantAccessBlockedError

Solicitação: Validar a causa do bloqueio do tenant (billing/suspensão/risco/ação de proteção) e executar o desbloqueio para restaurar o acesso ao Exchange Online/OWA.

please you may also send replies to:

pii removed

Thanks!

Answer 1

The error TenantAccessBlockedError typically indicates that access to the tenant has been restricted due to various reasons such as billing issues, account suspension, or security measures. To resolve this issue, you should check the following:

1. Billing Issues: Ensure that your subscription is active and that there are no outstanding payments that could lead to service suspension.
2. Account Suspension: Verify if the account has been suspended for any reason. This can often be checked through the Microsoft 365 admin center.
3. Security Measures: Sometimes, accounts are blocked due to suspicious activity or security risks. Review any notifications or alerts in your admin center that may indicate a security concern.
4. Contact Support: If you cannot determine the cause of the blockage, it is advisable to contact Microsoft support for assistance in unblocking the tenant and restoring access to Exchange Online/OWA.

You may need to provide them with the Tenant ID and other details you have shared for quicker resolution.