I already put my email in:

  - my online resume
  - LICENSE copyright holders
  - public contact info on various websites

The anti-spam at gmail.com is pretty decent so that I do not see those spams.

Basically, I have 2 email addresses: one public, one professional that I share only with partners/clients/coworkers.

I expect my public address to be found in under 5 minutes if someone wants to contact me (or spam me).