url*1="/that-should-be-wrapped/name.tar.gz"
Content-Type: application/octet-stream
+Content-ID:
Content-Description: Test of a long URL
Content-Disposition: attachment; filename="test.tar.gz"
------- =_aaaaaaaaaa0--
EOF
-check "$draft" "$expected"
+sed -e 's/^Content-ID:.*/Content-ID:/' "$draft" > "${draft}.nocontentid"
+rm "$draft"
+
+check "${draft}.nocontentid" "$expected"
[ ${failed:=0} -eq 0 ] && rm -f ${backup}