Hello,

I am receiving emails with virus as an attachment, to analyze the mail I use 
clamav, but I want to avoid that the mail is analyzed.


Is it possible to block the SMTP connection if the host does not have a reverse?


here an example:


FROM: "[email protected]" - X-Mailer = "" - Subject = Scan

H=([103.58.115.239]) [103.58.115.239] F=<[email protected]> 
rejected after DATA: This message contains a virus 
(Sanesecurity.Foxhole.7z_vbs.UNOFFICIAL).


host 103.58.115.239
Host 239.115.58.103.in-addr.arpa. not found: 3(NXDOMAIN)

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