Sometimes you'll want to add other headers to your email. Seam provides support for some (see Section 15.4, “Tags”). For example, we can set the importance of the email, and ask for a read receipt:

<m:message xmlns:m="http://jboss.com/products/seam/mail"
           importance="low"
           requestReadReceipt="true"/>

Otherise you can add any header to the message using the <m:header> tag:

<m:header name="X-Sent-From" value="JBoss Seam"/>