Adjusting PTR and SPF?

Question

Windows

Hello! A little confused.
There is an exchange 2007 mail server, for example mail.myrabota.ru, sends mail through the provider's server, for example relay.provider.ru.
How to properly set up SPF and PTR records?
In the headers we write, it is indicated that the letter went from my server to the provider's host, and already from it to the client.
From whom to allow sending mail to SPF? In PTR, I think it's still logical to specify HELO registered on my mailer.

Answer 1

ptr should not be touched at all, in the reverse zone of the ip relay there is an entry on the A record of this relay in the direct zone.