When using caff from the signing-tools pacakge, it looks for sendmail in the wrong places [1]. It would be useful to find a way to make it work when installed.
I have found a workaround, which is to specify PERL_MAILERS as
sendmail:$(type -p sendmail), e.g.:
PERL_MAILERS=sendmail:$(type -p sendmail) caff ...
1: /usr/lib/sendmail;/usr/sbin/sendmail;/usr/ucblib/sendmail
pgpA4zqL4xChH.pgp
Description: OpenPGP digital signature
