CODEWITHSUNDEEP
emailmuleemail-headers
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Rok

Reputation: 55

Dynamic custom email headers in mule emails

I'm trying to send custom email headers in emails from mule.

Adding a static header in the 

<smtp:connector>

definition as 

<smtp:header key="headerKey" value="headerVal">

is easy but I need to make the header values different for every email I'm sending with 

<smtp:outbound-endpoint>

Can this be done with Mule's SMTP component?

Upvotes: 0

Views: 291

Answers (1)

Rok
Rok

Reputation: 55

I have solved the problem by adding a custom transformer to the smtp outbound endpoint. 

public class EmailTransformer implements MessageTransformer {

    @Override
    public MuleEvent process(MuleEvent event) throws MuleException {
        ...
        SmtpConnector conn = (SmtpConnector)event.getMuleContext().getRegistry().lookupConnector("SMTP");
        if (conn != null) {
            conn.getCustomHeaders().put("headerName", headerValue);
        }
    }
}

The transformer reads the values in the variables and sets the headers in the transformer's process method. Not very elegant but gets the job done.

Upvotes: 0

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