This section explains us configuring message size limits.
To execute the following steps, log in to the Exchange Admin Center or launch the Exchange Management Shell.
The steps are explained in the following sections.
The following command will set the default organizational message size limits to 35 MB and will also limit the maximum amount of recipients per message to 250:
Set-TransportConfig –MaxReceiveSize "35MB" –MaxSendSize "35MB" –MaxRecipientEnvelopeLimit "250"
Perform the following steps through the EAC:
Navigate to mail flow | receive connectors.
Click the three dots (...) to show more options and click organization transport settings.
Configure the limits as follows:
Maximum number of recipients:
250Maximum receive message size (MB):
35Maximum send message size (MB):
35
Click on save.