I have emails generated inside a ui:repeat:

<ui:repeat value="#{emailNotificationTemplate.emailList}" var="emailList">
<m:message>
<m:from name="#{emailNotificationTemplate.fromName}" address="#{emailNotificationTemplate.fromEmail}"/>


<m:to name="#{emailList.firstname} #{emailList.lastname}" address="#{emailList.email}" />
<m:subject> #{emailNotificationTemplate.subject}   
</m:subject> 

<m:body> 

...

</m:body>
</m:message>
</ui:repeat>

question 1:
If the template hits a bad email address it generates an error and no more emails are sent.  How do I catch that so only the bad email is skipped?
question 2:
How do I make the subject dynamic?  When I try to customize each subject with some variation of:

<m:subject>
<h:outputText value="#{emailList.subject}"/>
</m:subject>

I end up with a blank subject line or quotation marks.  Is there a way to do this?
Thanx in advance