This document helps you set your organization-wide address for the Salesforce integration:

Perform the following steps:

  1. Go to Setup -> Search for ‘Organization-Wide Addresses’ and select it.
  2. Click on ‘Add’, Set your name as “PartnerAlign”, set your email address, set ‘Purpose’ as “User Selection” and select the checkbox saying “Allow All Profiles to Use this From Address”. 
  3. Click on Save.