One source to multiple destinations in Mirth

1. create the new channel with the name OneSourceMultipleDestination.
2. Set data types to delimited text.
3. Goto source tab, choose channel reader from the connector type drop down.
4. Goto destination tab ,from connector type choose FileWriter from drop down.
5. Method -> File
6. Directory -> Give your directory path(example D:/MirthTool/Output).
7.  File Name -> Give your file name(Ex:MyDestination).
8. Append To file -> Yes. (or No,Depends on user)
9.  From Destination mapping in right side,click and drag the Encoded data into the template field (or write ${message.encodedData}).
10.  Now click on New Destination from the Channel task in the left side.
11. Connector Type - > JavaScriptWriter.
12. Write as logger.info("Success"); inside the JavaScriptWriter field.
13. Now save and deploy the channel .
14. Now right click on the OneSourceMultipleDestination channel from the Dashboard ,choose send message .Write something and click process message button.
15. Now go to the given path(example D:/MirthTool/Output).There you can see the file which you named(MyDestination).
16. Open and see,there will be the text that you have wrote in the message field . 
17. And in the Log Information area in the bottom  you can see the success which is second destination output.(Remainder:See step 12)
    
     Like this you can add multiple destination.Using java file writer you can write in to another file.
    Use Database writer as a another destination and write into db.
    
    

Writing into another channel(One channel output as a another channel's input) in Mirth

1. Create a new channel with a name Channel1.
2. Set data types to delimited text.
3. Goto source tab, choose channel reader from the connector type dropdown.
4. Goto destination tab , choose channel Writer(Because we are providing this channel output as an input for the another channel) from the connector type dropdown.
5. In channel writer ,channel name as None(after created the Channel2 we give that name here).
6. From Destination mapping in right side,click and drag the Encoded data into the template field (or write ${message.encodedData}).
7. Save the channel.
8. Then again go and create the new channel with the name Channel2.
9. Set data types to delimited text.
10. Goto source tab, choose channel reader from the connector type drop down.
11. Goto destination tab ,from connector type choose FileWriter from drop down.
12. Method -> File
13. Directory -> Give your directory path(example D:/MirthTool/Output).
14.  File Name -> Give your file name(Ex:Myfile).
15. Append To file -> Yes. (or No,Depends on user)
16.  From Destination mapping in right side,click and drag the Encoded data into the template field (or write ${message.encodedData}).
17. Now save and go to Channel1 and change the channel name as Channel2  in the destination tab (As mentioned in the 5th step) .
18. Now save and deploy both the channel .
19. Now right click on the channel 1 from the Dashboard ,choose send message .Write something and click process message button.
20. Now go to the given path(example D:/MirthTool/Output).There you can see the file which you named(Myfile).
21. Open and see,there will be the text that you have wrote in the message field .

Sending an Email from Mirth

1. Create a New channel with a name SendEmail.
2. Goto source tab.
3. Connector type -> Channel Reader.
4. Jump into destination tab.
5. Connector type -> EmailSender.
6. SMTP Server Host as smtp.gmail.com .
7. SMTP Server Port 25.
8. Secure connection TLS.
9. USe authentication -> Yes 
10. Your gmail user name and password.
11. To Mail ID -> Give some of your other email id.
12. From -> Give your gmail id.
13. Finally enter the subject and body of the mail.
14. Save Channel.
15. Goto channel tab in leftside,then right click on your SendEmail Channel and deploy it.
16. Now go to dashboard and right click on your SendEmail Channel and choose send message.
17. Write something in that window and click process message button.
18. Refresh over the channel and go to your other mail id ,which you gave in To Mail Id in step 11.
19. There , you will get the new mail from mirth which you generated.