I was looking on a person's resume and he has put his email like this: foo+resume@gmail.com.
I am talking about that additional +resume.
I want to know:
- How these type of email works?
- How do I create email like that with my present Gmail address?
Additionally I tried creating an email address with + in between, but gmail only allows letters, numbers and periods.

team+webapps@stackexchange.comand you'll receive a reply. – Santosh Kumar Jan 13 at 8:28