Troubleshooting Email quarantined for Extra class PUA.Pdf.Trojan.EmbeddedJavaScript-1

Description

Logs show:
Main class: spam
Sub class: pattern
Extra class: PUA.Pdf.Trojan.EmbeddedJavaScript-1
Incoming/Outgoing mail with attachments detected as PUA.Pdf.Trojan.EmbeddedJavaScript-1
Attachment is being blocked as a Potentially Unwanted Attachment (PUA)
PUA restriction controls whether attachments that are considered dangerous or otherwise unwanted are rejected, for example compressed executable files (e.g. UPX packers), password tools, network tools, peer-to-peer clients, remote access applications, system tools, spying tools, and documents containing scripts.
PUA restriction may cause false positives, such as displaying Javascript in a PDF
 

Issue

Mails get quarantined due to attachments detected as PUA.Pdf.Trojan.EmbeddedJavaScript-1

Solution

Login into the spam expert -> click on the Dashboard

Scroll down t the right side click on the Attachment restrictions

Uncheck Block potentially unwanted attachments and save it.