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Merging Email Lists

Merging email lists (Merge Email Lists) means adding multiple email lists into one "master list" (Master List), usually with duplicate removal.

For this to work, both the master list and the lists being added must be sorted by the column containing the email addresses. The sorting order must also be the same across all lists. That is, if the master list is sorted by domain (Sort By Domain), then the added lists must also be sorted by domain.

To sort email lists in advance, enable the "Sort First" option.

The master list file (Master List File) may be absent, in which case it will be created automatically.

List of Added Email Addresses

You can save to a file the newly added email addresses that were not previously present in the master list (Output File Containing Addresses Not Previously In The Master List).

Sorting

You can enable sorting by domain (Sort By Domain), support for multi-column lists (Multi Column Support), and choose how duplicates should be handled:

  • Remove duplicate emails.
  • Remove duplicate lines. The master list may contain lines with the same email address but different data in other columns.
  • Merge lines by email address. Example: the input lists contain the following lines:
aaa@inbox.ru,56,78
aaa@inbox.ru,12
aaa@inbox.ru,34

The result is a single line:

aaa@inbox.ru,12,34,56,78