dvzrv [1] filed a deletion request for mailman-core [2]: mailman3 is now available in [community-testing]. As not all optional dependencies are yet packaged, it might take a while until it moves to [community]. Please refrain from updating the package here, as it will be removed once mailman3 has been moved to [community]. Thanks for packaging! [1] https://aur.archlinux.org/account/dvzrv/ [2] https://aur.archlinux.org/pkgbase/mailman-core/