IP is blocked. Reverse DNS issue

=========================================== This is the rDNS found:

<ec2-54-113-225-223.compute-1.amazonaws.com> generic EC2. This IP has been flagged because it's a non email server generic EC2.

Request a Elastic IP to AWS, with rDNS identification, if you plan to maintain an email server on your EC2.

https://matrix.spfbl.net/en/54-113-225-223 (fake ip given here)

==============================================

I have lightsail with Plesk Ubuntu installed. It has dns settings inside with PTR record (reverse DNS) In front page of lightsail also there is dns record

Not sure which gets applied.

Can i send and recieve emails with them ? Why it say no rdns when its there in Plesk dns zone settings. I did click - apply dns template Can i fix dns without route 53. Its annoying stuff. I mean i try to import dns zone file from plesk and it failed. i had to manually input. tomorrow if i change ip i need to reinput all. Nuiseance.

currently i can send email between local domain emails and also send email to google. But cant recieve emails from google. I do not know whats going on as there is no entry of those incoming email in maillog file.

Let me know. Thanks much.