[Exim] Q: Deferd Mail returning ...

Hi,

i just switched to Exim and it works very well. The only strange behaviour
ist, that I can not send mail to any address xyz@???.
The mainlog states:

2002-02-12 11:01:03 16aZkE-0005FE-00 == xyz@??? T=remote_smtp_filter
defer (111): Connection refused

All other domains work perfect, and the worst thing about that behaviour
ist, that i don't get any error message, even though i have set exim to just
retry one hour, so after that the mail should return, or am i missing a
point?

Thanks in advance, Roland