I have a Drupal 6 site. Using the Webform module.
I have it set to send all submissions to the webform to my email address (firstname.lastname@example.org) and the clients email (email@example.com) - for some reason webform is not sending the email to firstname.lastname@example.org only to my email address.
I tried different variations of emails, using other email addresses associated with the clients domain i.e. email@example.com but none of them work. But when I use other gmail and yahoo emails, the results come through just fine.