Received Postmaster attachment deleted letter of withdrawal

Today, my friend asked me, their company Mdamon Mail server sent a message with an attachment, the other side of the mail received, but no attachment, we received a letter from the postmaster system, the specific letter of withdrawal as follows:

The letter of withdrawal indicates that: ***.zip has a dsetreport.hta file in the compressed package, MDaemon detects that ***.hta is a restricted attachment and takes the deletion action. Enter the security---content filtering rules---Attachment tab, by default, MDaemon does not allow *.hta type of files to pass, and the default is to detect restricted files in the zip attachment. As shown in the following illustration:

Knowing the reason, we can solve the problem. A lot of solutions, choose one of them, I like the Third kind. 1. The deletion of these attachments is restricted by *. HTA;2, uncheck Check the restricted file in the zip attachment; 3, click here to configure the exception to handle the exceptions, add each other to the exception list. As shown in the following illustration:

Note: Screen screenshot is MD11.0.3

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