It's tiring to always create an email account to be used only for temporarily, that's why these sites exist:
Temp Mail - Disposable Temporary Email
Keep spam out of your mail and stay safe - just use a disposable temporary email address! Protect your personal email address from spam with Temp-mail
temp-mail.org
Disposable Gmail | Temp Mail
The most advanced temporary email service on the web to keep spam out of your mail and stay safe. It offers you to use a real Gmail email address.
www.emailnator.com