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.
How to create email address in format of me+foo@provider.com?
gmail;email
Anything after the + sign in the email prefix is generally ignored by mail servers and resolves and sends to the address without the [+word].  It's a way to easily track who sends you email.In your example, foo@gmail.com would receive the email, and +resume would be ignored, but the recipient (foo@gmail.com) will receive an email with foo+resume@gmail.com in the recipient (TO) list.See Gmail reference: Using an address alias