a821 [1] filed a deletion request for kopano-core [2]: This package has been broken for at least 3 years due to missing sources (which I myself reported). No updates since then (last commit in the AUR was in 2022) and no further comments. Doesn't seem like someone needs this. Safe to remove.
[1] https://aur.archlinux.org/account/a821/ [2] https://aur.archlinux.org/pkgbase/kopano-core/
