
Disable Reverse Lookups In QMail
Open /etc/xinetd.d/smtp_psa with your favourite text editor (vi, nano etc) Find the line that starts with server_args and add “-Rt0” after the equals sign like

Open /etc/xinetd.d/smtp_psa with your favourite text editor (vi, nano etc) Find the line that starts with server_args and add “-Rt0” after the equals sign like
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