Hi @teburke, thank you for trying our new Community!
For your issue, I am afraid that the reason why "JS_NEMUCOD.SMK14" keeps coming back is because this file needs permission before your Trend Micro Antivirus can delete it or maybe the threat might be attachments in your email. Hence I suggest you manually go to the file location and delete those files. The file location is included in the scan result of your Trend Micro program.
Please try and let us know if this resolves your issue. Thanks!
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