[exim] address_data / used multiple times causes issues

I'm trying to do some SRS work.

I do something like this:

  address_data = ${readsocket{/tmp/srsd}\
                {FORWARD $sender_address_local_part@$sender_address_domain
sample.com\n}\
                                        {5s}{\n}{:defer: SRS daemon
failure}}
  errors_to = ${quote_local_part:${local_part:$address_data}}@
${domain:$address_data}

It sends the original sender address out to the SRSD, which returns a new
sender address. That address is then set to errors_to so the envelope
address is changed.

Problem is I now am trying to use address_data later in another router. If
I do that, it seems to wipe out the errors_to value that was set in the
code above. I know the router ran but the new errors_to does not stick.

When I call the readsocket to the SRSD can I store the result in some other
usable variable?


Robert G.