Simon, it might be a question of where you are attaching the header.  In
the root processor, you need to attach the isRedirection header before your
email hits the mailet you want to use to route it.  I suggest using a
multiplerecipients matcher and customizing that to identify when some
recipients are part of the group you want to add the header to.  Then to
determine how it should be processed, you have a matcher that checks to see
if the header is present AND the recipient is part of said group.
Remember, processor order is important.

On Wed, Mar 6, 2019 at 6:56 AM Simon Levesque <suriv...@gmail.com> wrote:

> Hi,
> I added that logic to add an header per recipient, but it is being ignored
> by HasHeader .
>
> E.g. in my logs, I can see:
> INFO   | jvm 1    | 2019/03/06 11:44:48 | ---[Mail - Recipients]---
> INFO   | jvm 1    | 2019/03/06 11:44:48 | suriv...@gmail.com
> INFO   | jvm 1    | 2019/03/06 11:44:48 | si...@nnnn.com
> INFO   | jvm 1    | 2019/03/06 11:44:48 | ---[Mail - Headers Per
> Recipient]---
> INFO   | jvm 1    | 2019/03/06 11:44:48 | si...@nnnn.com : isRedirection
> ->
> true
>
> and
>       <mailet match="HasHeader=isRedirection"
> class="com.foilen.james.components.mailet.LogInfo">
>         <text>Recipient is ExactAndCatchAllRedirections</text>
>       </mailet>
> is not catching it. If I put the header on the message itself, then it is
> getting it.
>
> Is it a bug in the matcher? Should I use another matcher?
> thanks
>
>
> On Mon, 4 Mar 2019 at 10:06, Simon Levesque <suriv...@gmail.com> wrote:
>
> > Great, i will try that.
> > Thanks
> >
> > Le lun. 4 mars 2019 08:02, Raphael OUAZANA <raphael.ouaz...@linagora.com
> >
> > a écrit :
> >
> >> Hi,
> >>
> >> Le 2019-03-04 13:16, Simon Levesque a écrit :
> >> > Hi all,
> >> >
> >> > I created a mailet that modifies some recipients. When modifying them,
> >> > I
> >> > want to add an header only to those modified.
> >> > Given the method's signature:
> >> >
> >> > public void service(Mail mail) throws MessagingException {
> >> >
> >> > It looks like I can only modify one mail.
> >> >
> >> > From the documentation, I recal that if one message has 5 recipients,
> >> > then
> >> > they would be splited in 5 messages (one per recipient) and being
> >> > processed
> >> > individually, but in pratice, I am not seing that.
> >> > Is there a way to do any of these:
> >> >
> >> >    1. configure something to have one mail per recipient
> >> >    2. from a mailet, split a mail in 2 or call a service to create a
> >> > new
> >> >    mail
> >>
> >> Something has been added recently exactly for this purpose:
> >> perRecipientHeaders.
> >>
> >> See Mail.addSpecificHeaderForRecipient and
> >> Mail.getPerRecipientSpecificHeaders.
> >>
> >> Regards,
> >> Raphaël Ouazana.
> >>
> >
>

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