I am having problems with email in the spam box of Gmail and Outlook the mail server uncommented the following line.
smtpd_banner = $ myhostname ESMTP $ mail_name
even making this change I have wssa warning message on the server
Reverse DNS Does Not Match SMTP Banner
The rest is all working and the IP and nameserver are not in the blacklist
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I want to be able to contribute to the community and the people of this project.