It is possible to remove the email footer credit that reads ‘Powered by Jetpack CRM’. To remove this from the emails sent using Jetpack CRM, please follow the steps below:
In WP Admin, hover your cursor over Jetpack CRM -> click Settings.
On the Settings page that loads, click Mail on the left sidebar and look for “Show Powered By” in the Mail Settings panel on the right.
You can uncheck the checkbox to remove the “Powered by Jetpack CRM” from the footer of the emails sent to your contacts.