Your List Has Duplicates Duplicate email list addresses can result in disgruntled customers and database management challenges for your company. Obviously, it is unprofessional to email your customer multiple copies of the same message. Even though many duplicate addresses are email list the result of double entries by your customers, these very same people often become email list so irritated by receiving multiple messages that they unsubscribe from your list altogether. email list These "obvious" duplicates are easy to catch and most database managers can quickly do a scan of your list.
Ironically, not all companies catch these duplicates, especially if they maintain several lists and forget to de-dupe between them. email list The more difficult duplicates to detect are multiple unique email addresses owned and read by the same person. Imagine if your customer initially gave you their Hotmail address, and then later gave you their AOL email address.
You need access to a sophisticated and comprehensive database of email addresses to discover these duplicates and to decide which is the customer's current preferred email address. email list So Now What? Now that you know your list has inappropriate addresses, old addresses, typos, and duplicates, what can you do? There are a number of solutions, including: Improve your email address validation routines Worth looking at, but is this really your area of expertise?
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