While most emails contain basic identifying information in the header, many users go beyond this by creating email "signatures" with their full contact information. While signatures are useful to look ...

The vCard file format for address book contact details is the industry-standard contact file format and almost all Web-based email services, computer email programs and smartphone contact applications ...

I'm feeling dumb, here. On my iPhone I can choose Share Contact either directly from the google Maps app or from the Contact app. In either case it send a .vcf attachment in an email. Here's the .vcf ...