Gmail has unilaterally decided to change its DMARC policy, which means that Referral Emails sent using gmail.com in the from address, will have to originate from Gmail's infrastructure:
Impact to referral programs: Referral Emails sent from Advocate's with a "@gmail.com" email will be changed to "@email.referral-mail.com"; all replie-tos, however, will be to the advocate's actual email address.
Extole has been extensively testing the impact of sending emails from the advocate versus sending emails using the alternate email address format.
Our testing has shown there is no change to friend CTR based on this change
Extole will be building a new integration with Gmail that will help us support our original integration of coming from the friend.
In the meantime, we do not expect any impact to your program - though we will continue to help you to monitor for any changes to friend click through rate performance.