master
alpine: disable parallel build
bogofilter: make use of PKG_BUILD_PARALLEL
dovecot: update to 2.3.21
treewide: refactor to use PKG_BUILD_FLAGS:=lto
exim: update to version 4.96.2
fdm: update to 2.2 release and switch to PCRE2
treewide: Run refresh on all packages
mblaze: fix compilation with musl 1.2.4
msmtp: update to version 1.8.24
treewide: remove AUTORELEASE
opendkim: use pkgconfig for libbsd
pigeonhole: update to 0.5.21
postfix: Fix enabling PCRE support