Dear folks, This bug requested to send email by MUA, however I figured out how to send email via manually configured MTA-equivalent. (Thanks to Ryan Kavanagh's blog post [0])
I use msmtp as MTA, and I post the setting of both caff and msmtp in wiki: - https://wiki.debian.org/caff/msmtp - https://wiki.debian.org/msmtp I call msmtp is MTA-equivalent because it doesn't provide "sendmail", but accept sendmail's syntax and usage. (though there's msmtp-mta package, which provides "sendmail") TL;NR for caff the setting is like following: ==== $ENV{'PERL_MAILERS'} = 'sendmail:/usr/bin/msmtp'; $CONFIG{'mailer-send'} = [ 'sendmail' ]; ==== In this way, we may add MUA support if we write an MTA wrapper. [0] https://ryanak.ca/2016/04/16/Specifying-a-custom-MTA-path-in-caff.html Cheers, -- Roger Shimizu, GMT +9 Tokyo PGP/GPG: 4096R/6C6ACD6417B3ACB1

