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Error codes

4.4.2​

4.4.2 Message submission rate for this client has exceeded the configured limit​

Essentially, you are trying to send an email to too many people at once.

You can see the Receive Connector settings by running the following:

  Get-ReceiveConnector | ft Name, MessageRateLimit

You will see something like this:

  Name                                                        MessageRateLimit

  ----                                                        ----------------

  Default EXCH                                                20

  Client Proxy EXCH                                           5

  Default Frontend CLIENT-ACCESS                              Unlimited

This can then be changed with the following commands:

  Set-ReceiveConnector -Identity 'Default EXCH' -MessageRateLimit 1000
  Set-ReceiveConnector -Identity 'Client Proxy EXCH' -MessageRateLimit 1000

The results:

  Name                                                        MessageRateLimit

  ----                                                        ----------------

  Default EXCH                                                1000

  Client Proxy EXCH                                           1000

  Default Frontend CLIENT-ACCESS                              Unlimited