An account on a server whose handles are not its host's (Mastodon's LOCAL_DOMAIN apart from WEB_DOMAIN) showed as user@host. The actor's `webfinger` names the handle; its domain is kept once WebFinger there points back to the actor, and asked again when the name changes. A persona's blocked servers match a handle's domain as well as the actor's host, as the lists Mastodon exports name handles' domains. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01LsXgEaXee4GCU1hwYgPJXw