We didn't find a server (A Record) behind your hostname

[nangluv]

Hi guys !
my email sent from my server using vestacp alway went to SPAM folder .
I tested on https://www.mail-tester.com/ and it show that 6.2/10 and -3 point from this reson :

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We didn't find a server (A Record) behind your hostname 150-95-10x-xx.
We check if there is a server (A Record) behind your hostname 150-95-10x-xx.
You may want to publish a DNS record (A type) for the hostname 150-95-10x-xx or use a different hostname in your mail software.

is there any solusion to resolve this case please ?
my rDNS is ok :

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78.109.95.xxx.in-addr.arpa domain name pointer host.xxx.com.

added A record from host DNS
https://prnt.sc/uy6ovn
hope some one can help, thanks !