I answered my own question. It WAS a MailScanner problem, and I found the fix on
their discussion list:
http://www.jiscmail.ac.uk/cgi-bin/wa.exe?A2=ind0301&L=mailscanner&P=R59912&I=-1
Apparently something in the DCC check code changed the umask value, and MailScanner
assumed it wouldn't...
Pie
Pierre Thomson wrote:
I am running MailScanner with SA 2.50 under RedHat 7.3. So far I had not been running any network checks, but I wanted to try DCC. At first it worked only when SA was invoked directly, but the check never ran from MailScanner. I found that there was a path problem with /usr