Message has a DKIM or DK signature, not necessarily valid & SPF: HELO does not publish an SPF Record

Wondering if I could get help from the great minds on here in fixing this issue I’m stock with while configuring my mail server…

-0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid

and

-0.001 SPF_HELO_NONE SPF: HELO does not publish an SPF Record

Would appreciate any help I can get in fixing this technical bugger.

Thank you