On the Dashboard click the Settings > General link in the left bar
Find the Publication Name text box and type in the new name
Click the grey Save button
All future and past newsletters in this publication will have the new name.
Learn how to update the name of a publication
On the Dashboard click the Settings > General link in the left bar
Find the Publication Name text box and type in the new name
Click the grey Save button
All future and past newsletters in this publication will have the new name.