The client has the option to blacklist or whitelist any email address or domain based on the sender and recipient filters. If they want, they can restrict any IP addresses so email won't be received from those IP addresses.
Barracuda Email Security Gateway enhances email security with features such as link protection, advanced threat protection, and robust filtering options. It simplifies management but faces issues like false positives and integration challenges. Lack of DKIM support, high pricing, and limited technical support also pose concerns. Despite strong threat protection and easy configuration, these drawbacks lead to reconsiderations regarding its renewal and scalability. Some report difficulties with third-party tool integration and system telemetry.
