Email Blacklist Tester

Email Blacklist Tester compared with MultiRBL, Spamhaus lookup and DNSChecker
Email Blacklist Tester (MxToolbox)	MultiRBL	Spamhaus lookup	DNSChecker
Lists covered: Tests against over 100 DNS based blacklists in one pass, according to a third-party guide. Few of them, mainly Spamhaus, Cloudmark CSI and Barracuda, are widely enforced by receiving servers.	Lists covered: Aggregates several DNS blacklists in one lookup. The number of lists is not stated in the sources checked.	Lists covered: Queries the Spamhaus own lists. The SBL, XBL, CSS and PBL are named, and results are shown in removal order starting with the SBL.	Lists covered: Reports Yes or No per blacklist site. Spamhaus, Barracuda, Spamcop and SORBS are named as examples, but the page gives no total.
Accepted inputs: A sending IP address or a domain name.	Accepted inputs: An IP address or a domain, entered on its lookup page.	Accepted inputs: IPv4 and IPv6 addresses, domain names, email addresses and hash strings in one field. It detects the IP address of the visitor and warns when that address is listed.	Accepted inputs: IP addresses, domains and email addresses. For a domain or email the user picks an A or MX record type, and the tool checks the IP addresses behind it.
Interpretation and delisting: Runs no blocklist of its own and does not remove listings. Removal is requested on each list site. Lists such as UCEPROTECT Level 2 and 3 can flag whole allocations, so a clean IP may appear listed because of a neighbour.		Interpretation and delisting: Explains why an IP or domain is listed and what to correct before a removal request. It opens a ticket with the delisting team when removal cannot be processed at once.	Interpretation and delisting: Returns a plain listed or not listed result per site. A check takes 20 to 40 seconds.
Cost model: The one-off lookup is free and needs no account. A paid Delivery Center adds continuous monitoring and reputation alerts.			Cost model: Described as a free online tool, with no sign-up or usage cap mentioned on the page.

Email Blacklist Tester compared with MultiRBL, Spamhaus lookup and DNSChecker

Email Blacklist Tester (MxToolbox)

MultiRBL

Spamhaus lookup

DNSChecker

Lists covered: Tests against over 100 DNS based blacklists in one pass, according to a third-party guide. Few of them, mainly Spamhaus, Cloudmark CSI and Barracuda, are widely enforced by receiving servers.

Lists covered: Aggregates several DNS blacklists in one lookup. The number of lists is not stated in the sources checked.

Lists covered: Queries the Spamhaus own lists. The SBL, XBL, CSS and PBL are named, and results are shown in removal order starting with the SBL.

Lists covered: Reports Yes or No per blacklist site. Spamhaus, Barracuda, Spamcop and SORBS are named as examples, but the page gives no total.

Accepted inputs: A sending IP address or a domain name.

Accepted inputs: An IP address or a domain, entered on its lookup page.

Accepted inputs: IPv4 and IPv6 addresses, domain names, email addresses and hash strings in one field. It detects the IP address of the visitor and warns when that address is listed.

Accepted inputs: IP addresses, domains and email addresses. For a domain or email the user picks an A or MX record type, and the tool checks the IP addresses behind it.

Interpretation and delisting: Runs no blocklist of its own and does not remove listings. Removal is requested on each list site. Lists such as UCEPROTECT Level 2 and 3 can flag whole allocations, so a clean IP may appear listed because of a neighbour.

Interpretation and delisting: Explains why an IP or domain is listed and what to correct before a removal request. It opens a ticket with the delisting team when removal cannot be processed at once.

Interpretation and delisting: Returns a plain listed or not listed result per site. A check takes 20 to 40 seconds.

Cost model: The one-off lookup is free and needs no account. A paid Delivery Center adds continuous monitoring and reputation alerts.

Cost model: Described as a free online tool, with no sign-up or usage cap mentioned on the page.