All incoming email going to spam folder

James server 2.3
My office email server was down over the holiday period, and on 
restarting it all incoming mail is now going to a spam folder on the server.
I use fetchmail to bring in mail from various sources to james and pop3 
server to access the mail from james.
I have an smtp gateway configured pointing to the mail server for an 
externally hosted domain.
As far as I can see, all mail coming in through fetchmail is sent to spam.
There is almost nothing in the logs. Fetchmail processing seems to be 
normal.  The only anomaly I can see is in mailet.log
05/01/24 17:17:02 INFO  James.Mailet: RemoteDelivery: maxRetries is 
larger than total number of attempts specified. Increasing last 
delayTime with 19 attempts
05/01/24 17:17:02 INFO  James.Mailet: RemoteDelivery: Delay of 21600000 
msecs is now attempted: 20 times
05/01/24 17:22:56 INFO  James.Mailet: ToRepository: Storing mail 
Mail1704475375634-0 in file://var/mail/spam/
The first 2 lines appear at startup, and the 3rd line is repeated for 
each incoming email.
Questions.
1 Any ideas what is going on?
2 How do I increase the logging level to help me work out what is going on.
3 Currently, I am accessing these emails by moving them into an inbox, 
and restarting james.   Is there any better way of doing this?