Is there any antispyware that blocks spam emails?

Hi all,

I am wondering if there is any anti-spy software that blocks spam emails and return them as delivery error to their sender?
I would like to have such a soft to stop receiving the spams. Rather than to receive them directly in the spam box, I wish that they can be returned to sender as a failure delivery.
Does anyone know such soft or methode to stop spammers at the first level of their spam sending?

Thank you for your help/comments

I would switch your mail to a host or provider that blocks spam based on known blacklists, or get in the habit of unsubscribing to as many as possible that do trickle in.

Thanks for your answers.
I think the tips proposed still inefficient!
I think that return spam emails to their sender as "Delivery Failure" would discourage spammers, as they will know that their emails will not be received nor read!
At least, they cannot send their garbage for a second time!
OK, the first time they can send an email, but when we mark the sender as spam, we should expect not to receive any more from the same sender.
I have yahoo account and I mark many senders as spammers but I still receive their spams!

Technically speaking, what is the difficulties to make such a software/option?
Are there really?

I think you are living a little above reality, unfortunately. Spammers already will get a ton of returned messages, and they clearly aren't discouraging them. One person, with one app installed on their computer is hardly going to stop them. Have you ever gotten physical mail spam, and written return to sender on it? That is hardly a discouragement, either. All you can really do is keep it out of your own inbox, and that's it.

Leo LaPorte discusses server side spam filtering, which some ISPs provide:
YouTube - MailRoute - Security Now 269 - 6 October 2010
Also running your email through gmail will also provide server side spam filtering.
Here is an interesting discussion about spam (some good suggestions in the comments): I, Cringely » Blog Archive » The Decline and Fall of E-Mail - Cringely on technology

The "return to sender" spam policy wouldnt work.

Most spams come from faked email addresses, so if you were to return them to the sender (with some kind of polite/impolite message), they would be received by innocent parties. If those parties use the same tactics, or the isp/email provider bounced the mail, it could create an endless email loop (unless everybody added everybody else to the Allowed list).

Some of the spam comes from smalltime vendors that use a genuine address and have an autoreply on that address. Returned spam would trigger an autoreply that would be marked as spam by the receiver and returned to the vendor which, of course would trigger another autoreply and so on....your ISP would probably block your account for spamming.

IMO, Gmail has the best spam filter, I also aggressively mark spam as spam instead of just deleting them. if you're using Outlook or other email clients, you can create message rules based on subject, senders, content etc.

Barman58 said:

Never use the unsubscribe option on a spam email, what this does is confirms to the spammer that the email address is actually live and is thus a valid target.

It should go without saying, but I guess I'll have to say it...this is where common sense comes in. If it is a random e-mail selling you Viagra...you'd never want to confirm your valid address. If it is an e-mail from an online newsletter, store you bought something from, conference you attended, etc...these are what you want to unsubscribe from. The vast majority of SPAM would fall under this category...nothing malicious, just unwanted.