E-mail send from my own e-mail (email@example.com) to a Gmail-account is marked as spam. When I view the e-mail headers you will see a softfail. I have tried to set the SPF-record for my domain, but I keep getting a softfail:
Received-SPF: softfail (google.com: domain of transitioning firstname.lastname@example.org does not designate 2a02:348:83:cc40::1 as permitted sender) client-ip=2a02:348:83:cc40::1;
2a02:348:83:cc40::1 = 126.96.36.199
I have tried to set different SPF-records for the domainname: example.nl, an example:
v=spf1 ip4:188.8.131.52 ~all
What SPF-record to I need to set in order to 'pass' for the SPF?