Hello, MailKit for macOS 12 looks great, but it is possible to have access to incoming/outgoing email attachments? For the moment MEMessage does not give access to such properties. Or any other ways to achieve this? (like some data parsing)? Thank you

Dear all,In macOS Catalina we have the new NetworkExtension framework that can filter network trafic on a computer.In my usecase I need the PID of the process that is the originator of the network flow. I'm aware that PID are not a reliable way to identify a process (since PIDs can be reused), but in my usecase only PID can identify what I need.In handleNewFlow(_ flow: NEFilterFlow) we can get the sourceAppAuditToken (flow.sourceAppAuditToken), where sourceAppAuditToken is a Data type. Is there a way to convert this sourceAppAuditToken to a PID value?I'm also aware of getting the signature of the process (eventually the Bundle ID) with SecCodeCopySigningInformation / kSecCSDynamicInformation, but again in my usecase it does not help.A way to do this is to call "netstat" and look for the local port in the output and get the PID from there, but sometimes this is not very reliable.Any ideas how to do this?Regards,Alex