Blacklist wiki · Retired
Unsubscore (LashBack UBL)
The LashBack Unsubscribe Blacklist (UBL) identifies senders who continue emailing recipients who have unsubscribed. It monitors compliance with unsubscribe requests across the email ecosystem.
- Zone
- Additional
- Tier
- Author
At a glance
- Zone
- ubl.unsubscore.com
- Tier
- Additional. Smaller or specialist lists with a narrower reach. Lower impact on its own, but worth clearing; a scan reports a listing here as information.
- What it lists
- IP addresses that send email to recipients who have previously unsubscribed.
- Impact
- Medium: specifically targets senders who ignore unsubscribe requests, which is also a legal compliance issue (CAN-SPAM, GDPR).
- How to check
- Nothing to check: the zone no longer answers queries.
- How to delist
- No need: a list that has shut down holds no listings.
- Auto-expiry
- Does not auto-expire. Contact LashBack support for removal.
How to get delisted
Kept for reference: this list no longer operates.
- 01Contact LashBack support for your listing details
- 02Review your unsubscribe handling process and ensure all opt-outs are processed promptly
- 03Process unsubscribe requests within 10 business days (legally required under CAN-SPAM)
- 04Implement proper list-unsubscribe headers in your emails
- 05Submit a removal request after fixing your unsubscribe process