Hi! I figured it out (with a little off-list help by Stefan Kugler - thanks!!) My working config now is: Hostname: services.dnb.de Port: 80 (instead of 443) Database: sru/authorities (remove slash at the start) Database: sru/accessToken~TOKEN/authorities (though it seems to work with and without token Syntax: MARC21 Encoding: utf8 Record Type: Authority Additional SRU options: sru=get, sru_version=1.1, schema=MARC21-xml (ADD: sru=get; REMOVE: operation=searchRetrieve) SRU Search fields mapping: EMPTY (still fiddling with these..) So I guess the real problem was the Port and some of the SRU options. Greetings, domm -- #!/usr/bin/perl https://domm.plix.at for(ref bless{},just'another'perl'hacker){s-:+-$"-g&&print$_.$/}