Why is My IP Blacklisted?
SURBLs (no longer the acronym) are generally the second line of defense but not
all spam filters are capable of using them. SURBLs are blacklists of websites
that have been noted for appearing in unsolicited emails. Spam filters that can
utilize the SURBLs will scan the body text of emails and extract any website
addresses and check them against the blacklists. If an address is found, the
message will be flagged as spam and handled accordingly.
Since both methods filter differently they are most effective when combined.
Unfortunately as spammers become more clever there isn’t a method that can catch
every spam message. It is interesting to note, given the methods spammers use,
that DNSBLs tend to change more frequently than SURBLs. If you’re an email system
administrator and your server has been blacklisted, you will have to work with the
various DNSBLs that may have you listed and/or SURBL (www.surbl.org).
There maybe several reasons that your IP is on the blacklist.
- Some of the many reasons for IP blacklisting are the virus, malware, and sending numerous spam emails.
- If you run a mail server that is not configured properly, which results in sending spam, or you intentionally
send spam, then your IP address will definitely be blacklisted.
- Maybe you tried to purchase the email lists from a third party containing many incorrect or spam email addresses.
- The majority of the email receivers mark your email as spam.
- Someone hacked your email account and is using it for spamming activities.
- There is also a scenario that your IP is on the blacklist; even you did not do anything wrong.
That frequently happens when having a DHCP IP address. Most of the blacklist maintainers automatically
add an IP address that is assigned via DHCP by an ISP. Even though you are not a spammer, or maybe the
person who had your IP address before you, was using it for spamming activity. Only your ISP knows who
had that IP address before assigning it to you.
- Your website can even be listed on a search engine's blacklist, and no legitimate website wants this.
Several reasons can play a role in this regard.
- If your website is spamming or maybe, you are getting backlinks from websites that are spamming.
- Your website is suspected of being used for hacking purposes.
- Once the website is added to the search engine's blacklist, it will vanish from the internet.