Icons used in Newsletter (May '21 design) are licensed from the Noun Project. It is a royalty free license. Noun Project confirmed licensing. Here is a Copy and Paste of that exchange:
From: Tony (Noun Project Support) <info@thenounproject.com> Date: Monday, May 17, 2021 at 5:36 PM To: Katie Rusch <katie@teamcornett.com> Subject: [Noun Project] Re: Question about NounPro Unlimited
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Your request (103580) has been updated. To add additional comments, reply to this email.
Tony (Noun Project)
May 17, 2021, 2:36 PM PDT
Hi Katie,
Thank you for reaching out. Icons downloaded during a subscription period are royalty-free for an unlimited amount of time. This means you can continue to use them for the same project outside of the subscription period. I will include more details on commercial and resale use below. Please let me know if you have any other questions.
Commercial Use Rules You can use icons for Commercial Use as long as you follow their license. For icons that require credit and are listed under Creative Commons, you must either:
1) Purchase the $2.99 license to waive the credit requirement. 2) Have an active subscription to waive the credit requirement. 3) Purchase the icon via pre-paid credit to waive the credit requirement. 4) Follow the attribution requirements to credit the creator.
Once you purchase the icon you may use it as many times as you would like as long as it is for the same project/client and you may use it in any medium.