To protect users and the GMX systems, GMX reserves the right to temporarily or permanently refuse to accept emails if at least one of the following conditions is not fulfilled:
GMX reserves the right to use external lists, such as IP lists (DNSBL lists) or hash lists to sort and reject emails.
In addition to this, GMX reserves the right to seek legal action against users who infringe on this email policy, or to temporarily or permanently block email reception for such users.