If a tool shows one of your sending IPs on a blacklist, it's almost always a non-issue:
We use dynamic IP rotation — IPs change throughout the day — so a tool may be flagging a previously-used IP while your current sending IP is different and unaffected. Your actual sender IP lives in other DNS records, not the A record many tools check.
UCEPROTECT (e.g. UCEPROTECTL3) flags entire hosting networks, not individual senders — even clean senders and Google's own IPs appear there. It has no real impact on cold email deliverability and can be ignored.
In 2026 the blocklists people worry about most — SURBL, UCEPROTECT and RATS — no longer affect inbox placement at the major providers (see SURBL Listings and Deliverability Impact). If a tool reports a Spamhaus listing on your cold sending, it usually points to list hygiene — sending to unknown or catch-all addresses — rather than our infrastructure, so keep sending as usual and tighten up your lead list. If you're still concerned, contact support and we can share your current rotated sending IP.