If you want to hide your real email address and use a free temporary email address, I suggest using ESE.KR.
ESE.KR , which seems to be the Korean disposable email service, provides some nice features, such as downloading raw email with full headers and receiving mails with custom domain.
The most beautiful characteristic of this service is its simplicity.
There are no sign-ups or sign-ins! And surely it's 100% free.
They have many domains and the domain of a given mail address is changing daily, so their service will not be blocked by the majority of websites.
I can recommend ESE.KR as the world's best free temporary email site.
<Visit ESE.KR>
here is a snapshot :
