Malicious email attachments

I seem to be receiving an extraordinary number of suspect emails lately (with zip or doc etc attachments).  I expected Norton to scan all attachments and where they are found to be suspect, to quarantine them - and maybe let me know.  It's possible Norton would scan the suspect attachment if I were to click on it, but I'm not intending to try that.  But if it's already scanned the attachment, and found it to be suspect, does anyone know if it should still be sitting in my queue?