relaydelay no longer working?

Jun  9 06:49:35 hermes sm-mta[29016]: m58InZug029016: Milter 
(relaydelay): error connecting to filter: Connection refused by 
/var/run/relaydelay.sock
Jun  9 06:49:36 hermes sm-mta[29016]: m58InZug029016: Milter 
(relaydelay): to error state
Jun  9 06:49:36 hermes sm-mta[29016]: m58InZug029016: 
localhost.localdomain [127.0.0.1] did not issue MAIL/EXPN/VRFY/ETRN 
during connection to MTA-v4
Jun  9 06:50:36 hermes sm-mta[29422]: m58IoaNH029422: Milter 
(relaydelay): error connecting to filter: Connection refused by 
/var/run/relaydelay.sock
Jun  9 06:50:36 hermes sm-mta[29422]: m58IoaNH029422: Milter 
(relaydelay): to error state
Jun  9 06:50:36 hermes sm-mta[29422]: m58IoaNH029422: 
localhost.localdomain [127.0.0.1] did not issue MAIL/EXPN/VRFY/ETRN 
during connection to MTA-v4


I tried re-starting....these seem to have been updated........

-rw-r--r-- 1 root        root           6 2008-06-09 06:47 relaydelay.pid
srwxr-xr-x 1 root        root           0 2008-06-09 06:47 relaydelay.sock

Where do I start fault finding?

This has worked for 2 years apart from patching Debian there have been 
no other changes.....

regards

Steven