More Internet, the most troublesome is the problem of spam, therefore, automatic recognition of spam has become a very important function of webmail. However, the so-called "impossible to defend", even if there is automatic recognition of spam, it is difficult to block the fierce attack of spam. However, there are now other solutions, there are mail service providers specializing in some temporary email services, you can not even sign up to use. That way you don't have to worry about your email being contaminated when you sign up for an account online: Here are 20 of the best temporary email services recommended by sizlopedia.