roderik.nl has no MX RR, but A, which is ok. So it seems that your DNS
resolver is broken.
The output of "exim -d -bt tester@???" should include something like
calling dnslookup router
dnslookup router called for tester@???
domain = roderik.nl
DNS lookup of roderik.nl (MX) gave NO_DATA
returning DNS_NODATA
DNS lookup of roderik.nl (AAAA) gave NO_DATA
returning DNS_NODATA
DNS lookup of roderik.nl (A) succeeded
If roderik.nl should be handled by your Exim itself, your routers
configuration are also broken, so you should post the section.
> When i saw the logs i also saw that the mainlog mainly consist of lines
> like:
> 2005-10-10 14:23:11 1EOwfD-0005as-00 Message is frozen
That may or may not be related to the problem above. You can see the
reason for the freezing by search for the message id 1EOwfD-0005as-00 in
the main log.
> 2005-10-10 14:21:35 1EOwet-0005aZ-00 <=
> exim-users-bounces+roderik=roderik.nl@??? H=localhost [127.0.0.1]
> U=fetchmail P=esmtp S=5228
> id=CCEEKBJEKKLABGFGILIKOENKEAAA.robert@???
> 2005-10-10 14:21:45 1EOwet-0005aZ-00 ** raro@localhost D=procmail
> T=procmail_pipe: return message generated
Why do you auto-generate replies to the list??
> exim-users-bounces+roderik=roderik.nl@???: unrouteable mail domain
> "exim.org"