Comment 1/2. Noting that the following topics are also related to this one. Linking here, as this one seems to be the most comprehensive.
- Allow Two or Multiple Names for one shared Email
- Name and Email Address Combination as Unique Identifiers
- Contacts with Same Email Address
- Ability to have a generic email address stored against multiple contacts, and send emails to this
- Using a single email across multiple contacts Multiple
- Use same email for multiple contacts
- multiple contacts with one e-mail address
- Allow to register several contacts that have the same email address
This is clearly an issue that is problematic for a lot of people. I thought it would be helpful to collect the posts and comments in one place.