office-365-groups-ad-attributes.md

Name	AD Attribute	Description
Display Name	displayName	The name displayed when sending emails from the group, as well as, the GAL
Alias	mailNickname	Used by Exchange to find any local object with an e-mail address
Primary Email address	proxyAddresses	Primary email address of the group
Notes	description	Field to help people understand why the group exists
Hide this group from address lists	msExchHideFromAddressLists	Should the group be visible from the GAL
Owners	managedBy	The users who manage the group
Members	member	Who receives emails that are sent to the group
Group Membership Permissions	msExchGroupJoinRestriction	Permissions on who and how people can join the group
Group Leave Permissions	msExchGroupDepartRestriction	Permissions on who and how people can leave the group
External Sender Permissions	msExchRequireAuthToSendTo	Can people outside your organization send to the group?
Send To Permissions	authOrig	Users who can send emails to the group
Moderator Approval	msExchEnableModeration	Does a moderator need to approve emails sent to the group
Moderators	msExchModeratedByLink	Users who can approve emails sent to a group
Skip Approval	msExchBypassModerationLink	Users who don't need a moderator to send to the group
Sender Notification	msExchModerationFlags	How do you notify a sender when moderators review the message
Email Addresses	proxyAddresses	The email addresses for the group
Mail Tip	msExchSenderHintTranslations	Tip displayed when someone adds the group to an email in Outlook and OWA
Send As		Users that can send as the group
Send On Behalf of	publicDelegates	Users that can send on behalf of the group

hi thanks for help great information.

AcceptMessagesOnlyFromSenders which one corresponds