Error with altermime

[Damian]

> For some reason it's trying to alter a file that doesn't exists 
> /var/spool/amavisd/tmp/amavis-20230110T095247-31601-RpGveeFM/email-repl.txt, 
> but 
> /var/spool/amavisd/tmp/amavis-20230110T095247-31601-RpGveeFM/email.txt 
> does exists

Are you sure that email-repl.txt did not exist? Amavis wants to create 
one in altermime context. Moreover, a missing altermime input yields

> AM_add_disclaimer: Cannot open /path/to/file.txt, No such file or 
> directory
but in your case it seems to have coredumped.