When entering my Instagram account, it asks for a verification code, this code does not come to my e-mail address. Also, I forgot my password, I do not receive e-mails. When I send an e-mail to Yahoo from my personal e-mail address, that e-mail arrives. Unfortunately, I do not receive emails about Instagram.You also don't get password reset requests emails? or notification from new login?
Also what happends when you sent a mail yourself to the yahoo mail.