bug#28470: caff in the signing-party package can't find sendmail on GuixSD

[Ricardo Wurmus]

Hi Christopher,

> 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

What is the expected behaviour here?  Does it *only* work with sendmail?
Or would any mailer (like msmtp) work?  Should the user’s default mailer
be used or should we embed a reference to a specific mailer?

-- 
Ricardo, an msmtp user

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