Download your plugin from the following URL: https://login.salesforce.com/packaging/installPackage.apexp?p0=04ti0000000AlPi (version 1.23)
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1) Select your Campaign layout and add the MailUp button (already available in your fields and buttons lists): to do so select the MailUp button and drag it to the custom buttons area under Campaign Detail section and save (upper left.)
2) Create a new section in your Campaign PageLayout, named MailUp, and include the following fields:
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Console and fields mapping
Map your MailUp console with your Salesforce organization from the new tab Configuration.
Add the follwing data, click on Save and then on Activate console:
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