I recently set up an email server in my house. When I send out emails it oftentimes gets caught as spam in others mailboxes. Sometimes it doesn't even reach them. Someone told me I need to have my ISP create the reverse ptr record for my mail server. When I spoke with my ISP, they said it was something that I do on my end.
Who is right? And if I need to do it on my end how exactly do I do it?
Thanks All! Happy Labor Day Weekend!