SSL v3 deactivated at mailing server
As advised in the security notice of BSI, we have deactivated all mailing server accesses throuhg SSL v3.
The security notice can be found here: https://www.bsi-fuer-buerger.de/BSIFB/DE/Wissenswertes_Hilfreiches/Service/Aktuell/Meldungen/Poodle_SSL_15102014.html