Exchange 2016 - iPhone ios Handy Versand nicht über 10MB

[PS] C:\Windows\system32>Get-TransportConfig | fl MaxSendSize,MaxReceiveSize,ExternalDsnMaxMessageAttachSize,InternalDsnMaxMe
ssageAttachSize


MaxSendSize                     : 200 MB (209,715,200 bytes)
MaxReceiveSize                  : 200 MB (209,715,200 bytes)
ExternalDsnMaxMessageAttachSize : 200 MB (209,715,200 bytes)
InternalDsnMaxMessageAttachSize : 200 MB (209,715,200 bytes)



[PS] C:\Windows\system32>get-receiveconnector | ft name, maxmessagesize

Name                             MaxMessageSize
----                             --------------
Default EXCHANGE                 200 MB (209,715,200 bytes)
Client Proxy EXCHANGE            200 MB (209,715,200 bytes)
Default Frontend EXCHANGE        200 MB (209,715,200 bytes)
Outbound Proxy Frontend EXCHANGE 200 MB (209,715,200 bytes)
Client Frontend EXCHANGE         200 MB (209,715,200 bytes)


[PS] C:\Windows\system32>get-sendconnector | ft name, maxmessagesize

Name         MaxMessageSize
----         --------------
SMTP-Reddoxx Unlimited

[PS] C:\Windows\system32>get-mailbox Test |ft Name, Maxsendsize, maxreceivesize

Name              MaxSendSize MaxReceiveSize
----              ----------- --------------
Test Unlimited   Unlimited

httpRuntime maxRequestLength="30720"