https://community.checkpoint.com/t5/Firewall-and-Security-Management/Application-Control-mismatch-application/m-p/107518#M14392 <P>There was an issue in recent App Control signatures that flagged this as a false positive.&nbsp;<BR />Update your signatures to the most recent version and this problem should be resolved.&nbsp;</P> Mon, 11 Jan 2021 18:45:10 GMT PhoneBoy 2021-01-11T18:45:10Z https://community.checkpoint.com/t5/Firewall-and-Security-Management/Application-Control-mismatch-application/m-p/107441#M14385 <P>Application Control on R80.20 identifies SMTP traffic as VNC Traffic,</P><P>VNC is categorized by checkpoint as high risk application and there is a rule to prevent High Risk Applications.</P><P>So eventually legitimate SMTP Traffic is blocked.</P><P>&nbsp;</P> Mon, 11 Jan 2021 09:19:25 GMT https://community.checkpoint.com/t5/Firewall-and-Security-Management/Application-Control-mismatch-application/m-p/107441#M14385 MosheVan 2021-01-11T09:19:25Z https://community.checkpoint.com/t5/Firewall-and-Security-Management/Application-Control-mismatch-application/m-p/107518#M14392 <P>There was an issue in recent App Control signatures that flagged this as a false positive.&nbsp;<BR />Update your signatures to the most recent version and this problem should be resolved.&nbsp;</P> Mon, 11 Jan 2021 18:45:10 GMT https://community.checkpoint.com/t5/Firewall-and-Security-Management/Application-Control-mismatch-application/m-p/107518#M14392 PhoneBoy 2021-01-11T18:45:10Z