I have recently been uploading known malware sample not caught by the Comodo AV but double checked from websites like Virustotal.com using the using the Web-Interface for Malware and False-Positive Submissions link provided by Umesh. In the past after I provided the malware sample with my email address I would receive a confirmation regarding the same and if/what Virus Database update the new sig would be in. Within the past two months however I haven’t seen this same procedure repeated. Have you guys stopped responding with confirmations? I know the samples (some at least) are being added do to CAV picking them up with a manual scan a few days later. Also, on average can you say how long it takes for an uploaded sample to get back to the end user?
I don’t want to sound all bleh about it, I just liked the feedback I got when submitting the samples. Any case, hope all goes well and can’t wait to hearing from you.