Identify the sending domain and IP.
Reputation check
Check blacklist risk before a send.
Blacklist checking is planned for domain health and richer placement reports once production-safe providers are selected.
Planned: blacklist checks are not live yet.
Workflow
Simple enough to run before every important send.
Query selected blacklist providers.
Record the result in health history.
Guide
Use the result as evidence.
When to use this
Email blacklist checker is useful for senders investigating reputation warnings before or after spam placement. The job is to separate actionable blacklist findings from noisy or irrelevant listings, using evidence that is specific to the sender and message path under test.
The main risk is requesting delisting without fixing the sending behavior or compromised system that caused the listing. Sendlander keeps the workflow grounded by tying the page back to real reports, real seed results, and visible diagnostic checks instead of generic deliverability advice.
What the report should prove
The useful evidence includes listed asset, sending domain or IP context, provider placement, recent score movement, and remediation status. These signals help separate a broad sender problem from a provider-specific issue or a temporary pending state.
The checks to review are domain listings, IP listings, authentication, reverse DNS, compromised sending access, and complaint or bounce patterns. The result should lead to one or two concrete fixes, not a vague list of every possible deliverability concern.
How to act on it
A practical workflow is to confirm the listing, confirm the asset is in the sending path, fix the cause, then request delisting if appropriate. After each meaningful change, rerun a comparable test so the team can tell whether placement improved.
Use this page as an entry point into the product, then save the report in the dashboard when the result matters. Saved reports make follow-up tests easier to compare and keep the next fix tied to evidence.
Details
Focused answers.
Can Sendlander delist my domain?
No. It can point to likely listings and remediation steps, but delisting is handled with the blacklist provider.
Why not query every blacklist?
Some lists are noisy, restricted, or not suitable for automated commercial use. Provider choice matters.