Hi @Vinod Survase ,
Welcome to our Q&A forum!
To get a distribution list sign-in and accessibility report from Exchange Online (EXO), you can use the Get-DistributionGroup cmdlet, it allows you to view existing distribution groups or mail-enabled security groups. You can also use the Get-DistributionGroupMember cmdlet to view the members of a group. Such as:
Get-DistributionGroup -Identity "Distribution Group" | Format-List
For more information about these cmdlets, please refer to: https://learn.microsoft.com/en-us/powershell/module/exchange/get-distributiongroup?view=exchange-ps
Another way is using the Graph API to retrieve the set of distribution lists. It is faster but more complex. You can refer to this blog: https://office365itpros.com/2021/08/16/report-exchange-distribution-lists/
Hope the above can help.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.