مقارنة أداة اختبار القائمة السوداء للبريد الإلكتروني مع MultiRBL وSpamhaus lookup وDNSChecker| Email Blacklist Tester (MxToolbox) | MultiRBL | Spamhaus lookup | DNSChecker |
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| 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. |
| نموذج التكلفة: The one-off lookup is free and needs no account. A paid Delivery Center adds continuous monitoring and reputation alerts. | | | نموذج التكلفة: Described as a free online tool, with no sign-up or usage cap mentioned on the page. |