Hi, the log file shows suspicious entries as follows:
Apr 3 09:14:49 xxx dovecot: imap(user@domain): Error: fts_solr: Lookup failed: 400 Bad Request The tomcat7 log shows for this request: 10.0.0.234 - - [03/Apr/2016:09:14:49 +0200] "GET null null" 400 - Dovecot is latest 2.2.23 with a pretty standard FTS config copied from the wiki: mail_plugins = " acl fts fts_solr" fts = solr fts_solr = break-imap-search url=http://10.0.0.123:8080/solr/ Unfortunately I do not know (yet) which client action produces these log lines. "GET null null" seems not to be a sensible request in any case. Anyone seeing the same effect? Chris