No, unfortunately MassMailer doesn't support Professional Edition, you will need Enterprise or Unlimited Edition.
Sat, 24 Jun, 2017 at 4:47 PM
We provide a free install and configuration support during pacific standard business hours, 9am-5pm Mon-Fri. We provide both phone and email support. If nee...
Sat, 24 Jun, 2017 at 5:53 PM
From your Salesforce Setup page, find the installed packages and look for the MassMailer app. You can upgrade it from there or else you can upgrade from the...
Sat, 24 Jun, 2017 at 6:41 PM
MassMailer does support Enterprise and Unlimited Editions. In order to know the Salesforce Edition please follow the below steps. Click on Setup--&g...
Thu, 27 Jul, 2017 at 2:10 PM
Please follow the below link to resolve this issue https://help.salesforce.com/articleView?id=000230608&type=1
Thu, 27 Jul, 2017 at 2:13 PM
Once if you uninstall the MassMailer Application then you will lose all MassMailer related data.
Thu, 27 Jul, 2017 at 2:15 PM