If a Kaspersky application failed to detect a spam email, send it to the Anti-Spam Lab spam@kaspersky.com.
If your application still fails to detect this kind of spam mail several days after sending a sample to spam@kaspersky.com, send a request to technical support through Kaspersky CompanyAccount and describe your issue in detail.
Attach to the request your spam emails in the archive, EML format (preferably), or MSG. Please specify in the request that you have already sent the spam samples to spam@kaspersky.com.
If an email was falsely identified as spam, send a request to technical support through Kaspersky CompanyAccount and describe your issue in detail.
Attach to your request the emails falsely identified as spam in the archive, EML format (preferably), or MSG.
See more about Anti-Spam Lab requests in this article.