If an entry is listed in both the Permitted Senders and Blocked Senders Profile Groups, which entry takes precedence?

In situations where an entry appears in both the Permitted Senders and Blocked Senders Profile Groups, the entry listed in the Permitted Senders group takes precedence. This means that if an email is received from a sender who is included in both groups, it will be allowed through even if that sender is also blocked.

The rationale behind this prioritization is rooted in the fundamental goal of email security systems, which aims to prevent unwanted messages while ensuring important communications are not inadvertently blocked. The concept of a "Permitted Senders" list is designed to explicitly allow certain senders, ensuring that their emails bypass any restrictions that might apply to other senders. Therefore, when both an allowance (Permitted Senders) and a restriction (Blocked Senders) exist for the same sender, the system defaults to the more permissive setting, prioritizing the user’s intent to receive communication from that sender.

In summary, the presence of an entry in the Permitted Senders group implies that this sender is recognized as trustworthy or important, hence taking precedence over the blocking rule established in the Blocked Senders group.