It's in the setup to append the tag or not - I'm using the security suite, not just NOD AV but I expect it's similar.
Double click NOD in the System Tray - choose - Setup AntiVirus - Email - Configure (or similar).
OnePlus 5 review
Alice Saey's mesmerising animation for Dutch singer Mark Lotterman
iPad Pro 10.5in (2017) review
Comment booster votre iPhone ?