[exim] strange connection refused

Hi all,

About midday yesterday I noticed lots of 'connection refused' in my
logs. A lot of these where to 'big' domains like gmail.com and yahoo.com
which is what got my attention. Strangely, exim -v -M msg-id works and
will deliver the messages. exim_tidydb will solve the problem but only
for a short while before the cycle starts again. Any ideas?

--
Richard