Package: exim4-config Version: 4.89-2+deb9u4 It's not possible anymore to install exim4-config and ssmtp on the same server.
$ apt install exim4-config ssmtp … The following packages have unmet dependencies: exim4-config : Conflicts: ssmtp but 2.64-8+b2 is to be installed … This issue appeared between 2019-06-05 and 2019-06-06.
