When you are deduping, consolidating or doing identity resolution with party master data the elements that may be used includes names, postal addresses and places, phone numbers, national ID’s and eMail addresses.
Types of eMail addresses
In this post I will look closer into eMail addresses based on a general list of types of party master data.
You may divide eMail addresses into these types:
This is a private eMail address belonging to an individual person.
Typical formats are firstname.lastname@example.org and email@example.com and firstname.lastname@example.org
You may change your eMail address as a private person as time goes or have several such addresses at a time depending on your favourite providers of eMail services and other reasons to split your personality.
A household/family may choose to have a shared eMail Address for private use.
Typical format will be email@example.com where the word family of course could be in a lot of different languages like firstname.lastname@example.org
A special usage is the GROUP where two (or more) names are included like email@example.com
This is the eMail address you are assigned as an employee (including owner) at a company.
Common formats are firstname.lastname@example.org and email@example.com
When you change employer you also change eMail address and you may have several employers or other assignments at the same time. Also different formats like initials and full name may point to the same inbox.
Here the eMail address is not pointed at a particular person but some sort of a team within a company.
Formats are like firstname.lastname@example.org and email@example.com and firstname.lastname@example.org choosing the sales team in some different languages.
Some eMail are referring to a specific FUNCTION like email@example.com
This is an eMail address for the entire company.
Most common formats are firstname.lastname@example.org and email@example.com
Often a field designed for an eMail address is populated with invalid values going from obvious wrong values like XXX to harder detectable syntax errors and not existing domains.
Real world duplication
Many online services are based on registration via an eMail address assuming that one eMail represents one real world entity which of course is not the case.
Even on a service like LinkedIn where you may attach several eMail addresses to one profile you do encounter persons with obvious duplicate profiles.
Multi-channel marketing and sales
An increasing number of organisations are doing both offline and online operations today and when building enterprise wide master data hubs the eMail address becomes an more and more important element in matching party master data.
In such matching activities the eMail address can not stand alone but must be combined with the other elements as names, postal addresses, phone numbers and national ID’s upon availability.
Success in automating such processes is based on advanced algorithms in flexible and configurable solutions.
Comment or eMail me
If you also have been battling here I will be glad to have your comments here or by mail. My mail is firstname.lastname@example.org and email@example.com and firstname.lastname@example.org and email@example.com and firstname.lastname@example.org