⌂77% [ler@thebighonker.lerctr.org:~] 130 $ grep sysutils /var/log/solr/solr.log

2019-04-14 18:31:34.749 INFO  (qtp349420578-7538) [   x:dovecot] o.a.s.c.S.Request [dovecot]  webapp=/solr path=/select params={q={!lucene+q.op%3DAND}(hdr:sysutils\/+OR+body:sysutils\/)&fl=uid,score&sort=uid+asc&fq=%2Bbox:8097632f69627b5b58950000bbe98eac+%2Buser:ler&rows=22644&wt=xml} hits=0 status=0 QTime=460

Pick showing subjects:
https://www.lerctr.org/~ler/sysutils_mail.png

What else?

I'm happy to provide access.