Thanks again Chirpy for your unending font of knowledge.
I've now decided to go for the no_message_logs option and hence no longer need the contents of /var/spool/exim_incoming/msglog.
Just to check before I go ahead, it is safe to delete /var/spool/exim_incoming/msglog i.e. the whole directory, or should I just remove the files within?
Likewise, can /var/spool/exim/msglog now safely be deleted (or at least the contents within)?
I've now decided to go for the no_message_logs option and hence no longer need the contents of /var/spool/exim_incoming/msglog.
Just to check before I go ahead, it is safe to delete /var/spool/exim_incoming/msglog i.e. the whole directory, or should I just remove the files within?
Likewise, can /var/spool/exim/msglog now safely be deleted (or at least the contents within)?