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← cd ~/graph-permissions
// graph-permissions · Mail

Mail.Send.SharedMicrosoft Graph permission · Medium risk

Allows the app to send mail as the signed-in user, including sending on-behalf of others.

Delegated permission

Medium risk

Send mail on behalf of others. Allows the app to send mail as the signed-in user, including sending on-behalf of others.

IDa367ab51-6b49-43bf-a716-a1fb06d2a174
ConsentUsers can consent, if your consent settings allow it
RiskReads or changes the signed-in user's content, limited to what that user can access.

Ask for it when signing in

Delegated permissions act as the signed-in user, so the app can never do more than that user can.

powershell1 line
Connect-MgGraph -Scopes "Mail.Send.Shared"

Which apps already have it?

powershell6 lines
# Apps with delegated consent for Mail.Send.Shared
Connect-MgGraph -Scopes "Application.Read.All", "Directory.Read.All"
$graph = Get-MgServicePrincipal -Filter "appId eq '00000003-0000-0000-c000-000000000000'"
Get-MgOauth2PermissionGrant -All |
    Where-Object { $_.ResourceId -eq $graph.Id -and ($_.Scope -split " ") -contains "Mail.Send.Shared" } |
    Select-Object ClientId, ConsentType, PrincipalId

Other Mail permissions

Check every app in your tenant → Permission explainer

Sources