I haven't been able to find any details on when/how Cisco will support TLS 1.3 on the email security devices. Any links you can share? Thank you,Jason

We have a content filter that sends a bcc of all messages to an address on another server. This works with no issues. However one of the bcc messages timed out and was undeliverable to the remote server. As a result an NDR was sent to the original se...