--- /dev/null
+# test mhbuild linebreak for quoted-printable
+
+. "$MH_TEST_COMMON"
+
+
+draft="$MH_TEST_DIR/mhbuild-$$.draft"
+
+cat >"$draft" <<!
+From: meillo
+To: meillo
+Date: Thursday, 28 Sep 2006 00:02:00
+Subject: mhbuild line breaking with quoted-printable
+----------------
+Füße <-- to ensure quoted-printable is used
+
+ 1 2 3 4 5 6 7
+1234567890123456789012345678901234567890123456789012345678901234567890
+123456789012345678901234567890123456789012345678901234567890123456789012345
+
+1234567890123456789012345678901234567890123456789012345678901234567890123.
+12345678901234567890123456789012345678901234567890123456789012345678901234.
+123456789012345678901234567890123456789012345678901234567890123456789012345.
+1234567890123456789012345678901234567890123456789012345678901234567890123456.
+
+12345678901234567890123456789012345678901234567890123456789012345678901234.xx
+123456789012345678901234567890123456789012345678901234567890123456789012345.xx
+1234567890123456789012345678901234567890123456789012345678901234567890123456.xx
+
+12345678901234567890123456789012345678901234567890123456789012345678901234..yy
+123456789012345678901234567890123456789012345678901234567890123456789012345..yy
+1234567890123456789012345678901234567890123456789012345678901234567890123456..yy
+!
+
+
+
+runandcheck 'mhbuild "$draft"' <<!
+!
+
+runandcheck 'sed "/^Content-ID:/s/:.*/: <TESTID>/" "$draft"' <<!
+From: meillo
+To: meillo
+Date: Thursday, 28 Sep 2006 00:02:00
+Subject: mhbuild line breaking with quoted-printable
+MIME-Version: 1.0
+Content-Type: text/plain; charset="UTF-8"
+Content-ID: <TESTID>
+Content-Transfer-Encoding: quoted-printable
+
+F=C3=BC=C3=9Fe <-- to ensure quoted-printable is used
+
+ 1 2 3 4 5 6 7
+1234567890123456789012345678901234567890123456789012345678901234567890
+123456789012345678901234567890123456789012345678901234567890123456789012345
+
+1234567890123456789012345678901234567890123456789012345678901234567890123.
+12345678901234567890123456789012345678901234567890123456789012345678901234.
+123456789012345678901234567890123456789012345678901234567890123456789012345=
+=2E
+123456789012345678901234567890123456789012345678901234567890123456789012345=
+6.
+
+12345678901234567890123456789012345678901234567890123456789012345678901234.=
+xx
+123456789012345678901234567890123456789012345678901234567890123456789012345=
+=2Exx
+123456789012345678901234567890123456789012345678901234567890123456789012345=
+6.xx
+
+12345678901234567890123456789012345678901234567890123456789012345678901234.=
+=2Eyy
+123456789012345678901234567890123456789012345678901234567890123456789012345=
+=2E.yy
+123456789012345678901234567890123456789012345678901234567890123456789012345=
+6..yy
+!