An unrestricted exit relay carries the broadest abuse profile of any node on the Tor network because outbound traffic to arbitrary clearnet ports will reach SMTP, scanning targets and copyright-monitored peer-to-peer trackers. We strongly recommend that new exit operators begin with the Reduced Exit Policy maintained by the Tor Project, which excludes SMTP, common scanning ports and known copyright honeypot ports. This template reduces abuse complaints by roughly 80 percent compared to the default policy while still serving the great majority of legitimate Tor traffic such as web browsing, secure messaging and email retrieval over IMAPS.
ASN reputation is the silent variable that determines whether an exit operator has a sustainable hosting relationship. We avoid placing exit relays on ASNs that already host large clearnet workloads with strict SLA expectations, because abuse complaints against exits can spill over and affect unrelated tenants. The relay-tier ASNs are operated with the explicit assumption that abuse complaints will arrive, and the upstream relationship is built around forwarding them to the exit operator rather than nullrouting the IP.
You will publish a ContactInfo line in torrc, run a clear DNS PTR record that identifies the relay as an exit node, and set up a tor-exit notice page on port 80. These three steps short-circuit the majority of abuse reports because they let complainants see immediately that the IP is a public exit and route the complaint to the operator rather than the host. AnubizHost provides a templated notice page and PTR change request channel for exit customers.