root@uninsinuating-brantley:~# apt-cache depends opensmtpd
opensmtpd
Depends: libc6
Depends: libdb5.3
Depends: libevent-2.0-5
Depends: libpam0g
Depends: libssl1.0.0
Depends: zlib1g
|Depends: debconf
Depends: <debconf-2.0>
cdebconf
debconf
Depends: adduser
Conflicts: <mail-transport-agent>
citadel-mta
courier-mta
esmtp-run
exim4-daemon-light
lsb-invalid-mta
masqmail
msmtp-mta
nullmailer
qmail-run
sendmail-bin
ssmtp
xmail
dma
exim4-daemon-heavy
postfix
Replaces: <mail-transport-agent>
citadel-mta
courier-mta
esmtp-run
exim4-daemon-light
lsb-invalid-mta
masqmail
msmtp-mta
nullmailer
opensmtpd
qmail-run
sendmail-bin
ssmtp
xmail
dma
exim4-daemon-heavy
postfix