• Office 365 - Outbound spam protection in EOP

  In Microsoft 365 organizations with mailboxes in Exchange Online or standalone Exchange Online Protection (EOP) organizations without Exchange Online mailboxes, Microsoft takes managing outbound spam seriously. Even if one customer intentionally or unintentionally sends spam from their organization, that action can degrade the reputation of the whole service and can affect email delivery for other customers. This article describes the controls and notifications that are designed to help pFew readers

• Office 365 - Error code "550 5.1.8 Access denied, bad outbound sender"

  Non Delivery Report error code "550 5.1.8 Access denied, bad outbound sender" The complete NDR error message is as follows: This NDR is generated if a user tries toFew readers