safe to send? helps you easily scan recipient list and find out whether any contacts outside your company will receive the mail in to, cc, or bcc. The add-in can be invoked when composing new messages as well as when replying to or forwarding. safe to send? scans for your e-mail domain by default and highlights addresses on domains different than yours. Oh, and did we tell you it also works on meeting requests?
Feel free to add our trial version to Outlook and see for yourself how many mistakes will be avoided.