I use my own domain so I can return mails as bounced, which mail providers don't like, since it may indicate attempting to send unsolicited mail to loads of add

I use my own domain so I can return mails as bounced, which mail providers don't like, since it may indicate attempting to send unsolicited mail to loads of addresses. it's not me, it's you. Screw you if you send me mail I don't want!