Postmaster: postmaster@rrfo.de
Abuse: abuse@rrfo.de
Phone: 0731 718 862 43
RRFO
Einsteinstraße 35
89077 Ulm
Germany
IP Address: 91.99.233.15
Hostname: stalwart.rrfo.de
This server has SPF, DKIM, and DMARC properly configured. It is not an open relay and requires authentication for all mail submission.
Last updated: 2026-01-06T19:16:55Z