SMTP Receive Connectors Test

Smtp Receive connectors are configured on computers that are running Microsoft Exchange server 2007/2010 and that have Hub Transport and Edge Transport server roles installed. The Smtp Receive Connector represents a logical gateway through which inbound messages are received. This test monitors the statistics of smtp receive connectors.

Using this test, you can periodically observe the traffic conducted by the Receive connectors, and be promptly alerted when the connector rejects messages.

Target of the test : A server configured with the Hub Transport role

Agent deploying the test : An internal agent

Outputs of the test : One set of results for each receive connector on the Hub Transport server being monitored.

Configurable parameters for the test
Parameters Description

Test Period

How often should the test be executed.

Host

Indicates the IP address of the Hub Transport server.

Port

The port number of the Hub Transport server. By default, this is 691.

Measurements made by the test
Measurement Description Measurement Unit Interpretation

Current SMTP connections to the server

Indicates the current number of outbound connections from the SMTP Receive connectors.

Number

 

Messages received by the server

Indicates the number of messages received by the SMTP Receive connector each second.

Msgs / Sec

This is a good indicator of the load on the Receive connector.

Data received by SMTP server

Indicates the number of bytes received per second.

Bytes/Sec

This is a good indicator of the load on the Receive connector.

Messages refused due to size limit

Indicates the number of messages that were rejected currently because they were too big.

Number

Ideally, this value should be 0.

Avg. size of messages

The average number of message bytes per inbound message received.

Bytes / Msg

 

Avg. recipients per message

Indicates the average recipients per message handled by this SMTP Receive connector.

Recipients/Msg

 

Avg. data transfer per connection

Indicates the average number of bytes received per connection.

Bytes/Conn

 

Avg. messages per connection

Indicates the average number of message bytes per inbound message received.

Msgs/Conn