Looks like there's no DMARC record. EDIT: Oh, it's a Google Groups response: We're writing to let you know that the group you tried to contact (careers) may

Looks like there's no DMARC record. EDIT: Oh, it's a Google Groups response: We're writing to let you know that the group you tried to contact (careers) may not exist, or you may not have permission to post messages to the group. A few more details on why you weren't able to post: * You might have spelled or formatted the group name incorrectly. * The owner of the group may have removed this group. * You may need to join the group before receiving permission to post. * This group may not be open to posting.