Hi @Camors, Casey,
Welcome to the Microsoft Q&A forum.
Thank you for reaching out regarding your experience with creating a large contact list in the new Outlook for Microsoft 365.
Based on current behavior, the new Outlook interface does not yet provide the same contact list management capabilities that were available in classic Outlook. At this time, the interface primarily supports adding members to a contact list individually, and there is no built‑in option to bulk add or paste a large number of email addresses directly into a contact list.
As a forum moderator, I hope you understand that I don’t have the ability to modify or escalate product issues directly. If this functionality is important to your workflow, I strongly recommend submitting your feedback through the Outlook (new) · Community portal. This is the most effective way to ensure your voice reaches the product team and can be considered for future improvements.
Once you've submitted your feedback, feel free to share the link here in the comments. I’ll be happy to upvote it to help bring more visibility.
Additionally, since many other users have expressed similar concerns but may not know where to submit feedback, if my response has helped you better understand the situation and guided you toward a possible next step, please mark it as the “Accepted Answer.” Your action will help pin this post to the top, making it easier for others in the community who are experiencing the same issue to find your feedback and support it.
Thank you again for your time and for raising this important usability concern.
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