Mail isn't appearing in sent folder
Hi, I'm sending off emails to companies trying to get an internship. I have about 20MB of attachments on the email. When I click send I hear a swoosh but then the emails don't appear in my sent box. I have no idea if they have sent or not. When I email myself the same email or to a friend I know the email does appear in my sent.
why is it not appearing when I send to these companies?
Thanks
MacBook Air 13″, macOS 13.6