We always recommend you copy yourself when sending emails so you can confirm if it sends. Please have the recipient check their spam to make sure the email did not get filtered as junk.
If the recipient does not find it in spam, it is possible that your company may have a firewall that is blocking the email from being sent. You can try updating your preference for how emails are sent from the Ad-ID system and send the email again.
To update your preference, click on your email address at the top right of the screen and go to Profile.
In the section labeled Other Preferences, change the System Emails Sender option to “Send from ad-id.org.” This will send all emails from email@example.com. This may have a better chance of getting through firewalls and other preventative measures companies have implemented.
If the recipient replies back to the email, the reply will be sent to firstname.lastname@example.org, so you may want to include your email address in the body of the email as the reply to email.