emails going to spam folder Received-SPF: none

emails sent go to spam folder and raw message include, Received-SPF: none Received-SPF: none (domain of does not designate permitted sender hosts)
how i can fix this please

i have these errors on, 1 SMTP Reverse DNS Mismatch 2 SMTP Valid Hostname
what is the solution?

you have 2 reverse dns for the MX if you have 2 MX asigned diferents valors in Priority in MX
SPF u can use opendkim for configure your ip.Gmail also requests spf data to send emails managed by them but gmail have good faq for this.Also you can use postfix-policyd-spf-perl with postfix-policyd-spf-python

i’m not sure what is MX, you are very smart, i have set 2 rDNS for 2 different IP’s to the same hostname , is this what you mean? and how to use opendkim or postfix-policyd-spf-perl with postfix-policyd-spf-python
thank you very much, you are my superman :slight_smile:

ok i had to enter SPF and DKIM plus DMARC in DNS manager