Once you have the app installed, the first step is to create a profile. You can think of a profile as a configuration scheme in Jira, such as a workflow scheme. The profile contains all aspects of the configuration settings that are needed for processing incoming emails. To create a new profile, go through the following steps:

1. Navigate to Administration > Manage apps > Configure JEMH.
2. Select the Profiles option from the left-hand navigation panel.
3. Click the Create Profile button.
4. Enter a name for the profile, select DEVELOPMENT in the Readiness field, and click Create Profile:

With the profile created, we now need to configure it so that the JEMH app will know how to process incoming emails. The first step is to create an incoming mail handler by going through the following steps:

1. Navigate to Administration > System > Incoming Mail.
2. Click on the Add incoming mail handler button.
3. Enter a name for the new mail handler.
4. Select the Enterprise Mail Handler (JEMH) for Jira as the Handler option and click Next.
5. Select the JEMH profile we have just created and click Submit:

So now that we have an incoming mail handler that is associated with our JEMH profile, the next step is to configure it to process our email content:

1. Click on the Configure link for our JEMH profile.
2. Select the Field Processors option.
3. Enable the Colon Suffix (Mailform) option.
4. Click the Save button.

You may choose any format or combination of formats for field processors, and it is usually a good idea to enable multiple processors so that Jira can understand and process more than one. The important point here is that, whichever option you choose, you need to communicate this with your end users so they will understand how to craft their emails so that they can be successfully processed by Jira.

Look at the following screenshot:

This is the minimum required configuration to set up an incoming mail handler so that you can update your issues with emails. With all the configurations in place, the easiest way to test things out is to use the test case feature provided by the app, which avoids the need to send a real email around to all interested users. We can set this up by going through the following steps:

1. Select the Test Cases option from the left-hand navigation panel.
2. Click on the Create button.
3. Replace the Subject with the key of an existing issue in the Content textbox.
4. Add the following content under the Content textbox:

summary: This is a new updated summary       
description: This issue is updated via an email.

5. Click the Update and run button.

You should now see the result of running the test case:

As shown in the previous screenshot, and the issue you have referenced in the test case would have its summary and description values changed to the preceding content.