Sharing to another user via email taking a looooong time

I emailed a map via the Share button to another account I set up for a potential client.

The email pertaining to the sharing of the map has not been received after a while.

Is this supposed to take a long time?

@Photosolutions no, it should take no more than a few moments. Could you please send the details through to support@dronedeploy.com ? Thanks in advance.