What is RBL lookup?
A Domain Name System blocklist, Domain Name System-based blackhole list, Domain Name System blacklist (DNSBL) or real-time blackhole list (RBL) is a service for operation of mail servers to perform a check via a Domain Name System (DNS) query whether a sending host’s IP address is blacklisted for email spam.
How do I check if a domain is spam?
If your domain is banned, it indicates that it has been added to a spam list, and its reputation suffers as a result. SiteChecker’s free blacklist checker determines whether a URL or IP address is in the DNSBL database, which lists are based on the Internet’s domain Name System.
How do I remove a domain from blacklist RBL?
Visit the RBL website that has blacklisted your IP/domain and find a link there that would allow you to request removal from the blacklist. RBL generally provides you the time of listing and the reason for listing your IP address, this will be helpful for you to detect what in your email server caused the blacklisting.
How do you check if my DNS is blacklisted?
DNSBL Test. Check to see if your hostname or IP addresses are listed on major anti-spam DNS blacklist databases. Being blacklisted can result in email delivery issues. This tool performs a free email blacklist check against several different blacklist services on the domain you specify.
Is my email blacklisted by Gmail?
Run a Free Blacklist Check If you are being blocked by Gmail, your email will be rejected with a “421” or a “550” SMTP error. “421” errors indicate temporary blocks and mail servers attempting to resend the emails.
Is my IP address on a blacklist?
How to check IP blacklisting. Specify the IP address in the Server IP or Domain field and click Blacklist Check. The mail server IP will be checked against more than 100 blacklists. If your IP address is in the blacklists, you will receive the following message and a list of blacklists.
Why are domains blacklisted?
Domains can get blacklisted if there are too many spam complaints—or if the email appears to share the hallmarks of unsolicited promotion. ISPs may block users from accessing blacklisted websites and may prevent them from receiving an email from blacklisted domains or IP addresses.
What websites are blacklisted?
A Look at the Top Blocked Websites
How do I fix my blacklisted domain?
So, to remove your domain/IP address from those blacklists, it can be as simple as contacting its owner and requesting to be removed. The major blacklist companies have information on their sites on how you can remove yourself from their lists. Usually, the process is straightforward.
What does domain blacklisted mean?
A Domain Name System Blacklist (DNSBL) is a list that allows internet service providers (ISP) and other website administrators to block emails or traffic from specific systems. It’s usually those that are known for sending spam and other malicious content.
Is my domain blacklisted by Google?
Visit the Google Transparency Report. Enter your website URL into the Check site status search field. Submit your search to view the report.
How do I find a domain name from an IP address?
You can use nslookup on the IP. Reverse DNS is defined with the . in-addr.arpa domain. this will ask 184.108.40.206.in-addr.arpa and yield the domain name (if there is one defined for reverse DNS).
How do I query the DNSbl/RBL?
The DNSBL / RBL can be queried directly as bl.rbl-dns.com Currently, the following zones exist: – bl.rbl-dns.com combination of spam.rbl-dns.com and dul.rbl-dns.com in a single zone. Doing a DNSBL lookup on a message at SMTP connect time is cheap in hardware cycles and system time.
How did my IP end up as black listed in RBL?
How did your IP or Domain ended up as black listed in an RBL? Several reasons this can happen. Viruses, spywares, Trojans can also be causing a workstation on your network to send out spam e-mails.
How do I remove my name from the RBL Black List?
Visit the RBL website that has you blacklisted and find a link there that would allow you to request a removal from the black list. Use our RBL Search Tool to determine if your domain/IP is black listed. The result page provides link to the RBL website by clicking on the RBL name.
Why are my emails being reported to the RBL?
If your company sends out bulk e-mails such as newsletters or mass e-mailings of some sort then chances are one of these e-mails may have been reported to the RBL by someone who thought it was a spam.