On Thu, 23 Aug 2018 23:19:44 +0100 Dave Howorth <dave at howorth.org.uk> wrote: > I recently upgraded to claws > 3.16.0 and in consequence needed to retrain bogofilter. <SNIP> > And why did I have to retrain it just > because I upgraded? This cannot have been a consequence of upgrading Claws Mail, but something else on your system. with regards Paul