version=3
-opts=pgpsigurlmangle=s/$/.asc/,uversionmangle=s/_/~/ \
-http://ftp.exim.org/pub/exim/exim4/exim-(\d.*)\.(?:tgz|tar\.(?:gz|bz2|xz))
+opts=pgpsigurlmangle=s/$/.asc/,uversionmangle=s/[_-]/~/g \
+https://downloads.exim.org/exim4/exim-(\d.*)\.(?:tgz|tar\.(?:gz|bz2|xz))