ReplyAddress

For all e-mail FBO One sends out automatically, the 'from' address, is something like <a href="mailto:'myfbo@fboone.aero'">'myfbo@fboone.aero'</a> as opposed to FBO One user's own email address. This is because most spam-filters will reject mail sent by the fboone.aero mail servers when the 'from' address is not equal to sending mail server's domain.

To make sure recipients can reply to the email and those replies end up where they should, you can set the ReplyAddress setting to be equal to the FBO's own operations email box.