diff -Nru sup-mail-1.0/debian/changelog sup-mail-1.0/debian/changelog
--- sup-mail-1.0/debian/changelog	2020-07-23 23:00:19.000000000 +0100
+++ sup-mail-1.0/debian/changelog	2020-07-29 20:24:48.000000000 +0100
@@ -1,3 +1,9 @@
+sup-mail (1.0-3~0ubuntu20.04.1) UNRELEASED; urgency=medium
+
+  * No-change rebuild of sup-mail 1.0-3 from Groovy, for Focal (LP: #1888749)
+
+ -- Iain Parris <ipv2.vcs@parris.org>  Wed, 29 Jul 2020 20:24:48 +0100
+
 sup-mail (1.0-3) unstable; urgency=medium
 
   * d/patches: sup-config prompt with Debianized "sup-mail" (Closes: #966154)
diff -Nru sup-mail-1.0/debian/control sup-mail-1.0/debian/control
--- sup-mail-1.0/debian/control	2020-07-22 17:46:49.000000000 +0100
+++ sup-mail-1.0/debian/control	2020-07-29 20:24:48.000000000 +0100
@@ -1,11 +1,12 @@
 Source: sup-mail
-Maintainer: Debian Ruby Extras Maintainers <pkg-ruby-extras-maintainers@lists.alioth.debian.org>
+Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
+XSBC-Original-Maintainer: Debian Ruby Extras Maintainers <pkg-ruby-extras-maintainers@lists.alioth.debian.org>
 Uploaders: Utkarsh Gupta <utkarsh@debian.org>,
            Iain Parris <ipv2.vcs@parris.org>
 Section: mail
 Testsuite: autopkgtest-pkg-ruby
 Priority: optional
-Build-Depends: debhelper-compat (= 13),
+Build-Depends: debhelper-compat (= 12),
                gem2deb,
                ruby-chronic,
                ruby-gpgme,