To create the query:

In The Raiser's Edge
  1. Create a Constituent query.
  2. Filter on Notes,Type Equals NetMail AND Description Contains Undeliverable email text
  3. Select your Output.
  4. Run the query to see the results.

In The Education Edge
  1. Create a Record query
  2. Filter on Notes, Type equals NetMail AND Description Contains Undeliverable email text
  3. Select your Output
  4. Run the query to see the results