Maintenance request for dkimproxy not reviewed

Hi, I have submitted a maintenance request for dkimproxy (15.4 and 15.5) more than three weeks ago. https://build.opensuse.org/request/show/1124837 It's still in open review for server:mail/dkimproxy . I tried pinging the bugowner directly (comment on OBS, review request on OBS, direct email) but I still did not get any movement. What can I do to make this MR progress? On a related note, I would like to submit the updated package to 15.6 as well. I clicked around OBS a bit and found https://build.opensuse.org/package/show/openSUSE:Leap:15.6/dkimproxy . Should I send a MR to openSUSE:Backports:SLE-15-SP6? Thanks, Robert