Filtering. See my post just above yours...

Spammers won't go away anytime soon, for email doesn't cost them a cent (it costs you, in time lost to sift through it, but time is money, for you), so even if there is 0.1% of those spammed who respond, it's a 100% gain for the spammers. That's why they won't stop, ever, and no amount of pleading will help. Spam = money for them.

So your only way out of spam is filtering.

300 emails a day? I dare think about 250 of them are unwanted. I had the same problem in the beginning, when I was still young and naive, but those times are long past... I now generally ony receive 2-3 spam messages a month, all this thanks to a series of easy tricks I'm willing to explain to whoever is tired of seeing his/her mailbox overflowing with uncalled-for messages. Just ask. No strings attached, I'm not selling stuff! I just can so relate to people who are tired of seeing their mailbox becoming a dump.