I'm working on a problem merging some internal customer data on email address. However, I know that different email address can resolve to the same person. Some examples are:
- mapping a vanity domain to your free web mail (e.g.
- company mergers like
firstname.lastname@example.org the same person).
In these case, emails are delivered to the same inbox. I would like to merge these, so I am looking for an open database of email domain aliases. I'm not even sure domain alias is the right term, but Google Apps uses this in Give users an address at another domain.