Zoho does not filter virus

Zoho does not filter virus

Greetings, I ask for your support because I am receiving lately many viruses which are not detained for their service.

These viruses commonly come in zip files

Thanks in advance for your support in this matter

The viruses are detected Eset Smart Security
JS/TrojanDownloader.Nemucod.KC
Win32/Filecoder.Locky.A