“Changes to the distribution list membership cannot be saved. You do not have sufficient permission to perform this operation on this object.”
In Exchange 2010 you need to enable the ability to manage distribution groups
Logon to ECP –> under Roles & Auditing –>”Default Role Assignment Policy”
Under Distribution Group—> check “MyDistributionGroup”
This option will allow users to add/remove members to distribution groups they own.

Sr. Cloud Solution Architect at Microsoft, I’m passionate about helping customers succeed by building secure, scalable, and innovative cloud solutions – with a strong focus on AI, DevOps practices, and end-to-end security. With a proven track record in the IT and services industry, I serve as a trusted advisor, partnering closely with organizations to guide them through digital transformation and maximize the value of their cloud investments.
My role combines technical leadership with project ownership – from designing modern architectures to leading cross-functional implementations that drive real business outcomes. I also manage and empower strategic partners, working hand-in-hand with them to ensure project success and deliver measurable business impact for customers.