Remove duplicated emails with MLW

This action removes duplicated and wrong addresses. The list of removed addresses is displayed in the log in the following format:

DUP 6744: <mbdil@prodigy.net>
INV 6955: "E-mail the
DUP 7126: custcare@investors.com
DUP 7229: copyright@yahoo-inc.com
DUP 7241: "Send comments" <letters@forbes.net>

Each line starts with three-letter code (DUP - duplicated address; INV - wrong address), followed by the line number, colon, and the address proper.

Duplicated emails are emails with the same address:

John Smith <jsmith@email.com>
JSM <jsmith@email.com>

are duplicated.

MLW doesn't attempt to correct address syntax during this action, so we recommend that you run address syntax correction procedure first.

The action upon a list with one million addresses will take about 20-40 seconds on a machine with Intel Pentium III 933 MHz processor.

• Next operation: Concatenate two lists