Use
Before you put the SAP Internet Mail Gateway into operation, you should test whether or not the installation was successful.
Prerequisite
You have installed the SAP Internet Mail Gateway and the mailing program and adapted them to your network structure.
Procedure

For information on creating, processing and sending documents, see the documentation
BC - Business Workplace.
Outgoing Internet Messages
Testing the connection R/3®Gateway
First check whether program Mlunxsnd was accessed by the R/3 System, that is, whether the connection via the RFC destination works. Note that program Mlunxsnd must be started and registered for the activation type Registration. Proceed as follows:
Choose Test connection in the RFC destination display for program Mlunxsnd.
If errors occur, you should check the following settings:
Testing the connection Gateway®Mailing
In order to check whether the correct parameters are transferred to the program Mlunxsnd and that the program forwards the messages to the mailing program, proceed as follows:
Set the
trace for outgoing messages to level 1. Send a message from the R/3 System via the Internet, for example to an Internet address on your Internet Mail Gateway server.If errors occur, you should check the following settings:
Incoming Internet Messages
Set the
trace for incoming messages to level 1. Then send a message to the Internet address of an R/3 user.If a trace is written, this shows that the mailing program has successfully started the SAP mailer Mlsomail. Check with the help of the Trace file whether Mlsomail contains the following parameters: Path and name of the configuration profile and the recipient address.
If program Mlsomail has not been started, you should check the mailing program
configuration file.If the connection to the R/3 System cannot be made, you should check the SAP Internet Mail Gateway
configuration profile.