[exim] Bounce router based on both sender and recipient

I have the following router:

send_via_ses:
  driver = manualroute
  debug_print = "R: send_via_ses"
  domains = ! +local_domains
  transport = ses_smtp
  route_list = * email-smtp.eu-west-1.amazonaws.com;
  senders = lsearch;/etc/exim4/ses-senders

If the sender is listed in /etc/exim4/ses-senders the mail is sent via
the smarthost.

I also have a list of recipient addresses known to bounce in
/etc/exim4/ses-suppress.

What I am trying to do is define a router which bounces the message if
both these conidtions are true:

    1. sender is listed in /etc/exim4/ses-suppress
    2. recipient is listed in /etc/exim4/ses-suppress

If the sender is not listed in /etc/exim4/ses-suppress these two routers
should be skipped.

I have worked on this for quite some time without success so any help is
very much appreciated.

--
Jarle Hammen Knudsen