Inbox Pros Blog   »   Blacklists You REALLY Don’t Want to Be On as a B2B Enterprise Email Marketer

December 13, 2016

Blacklists You REALLY Don’t Want To Be On as a B2B Enterprise Email Marketer

Author | Brittany McCusker

 

Verify Emails Are Not on These Blacklists

 

 

 

 

 

 

 

You will find the blacklists you REALLY don’t want to be on as a B2B enterprise email marketer below. You will have stronger email delivery if you can verify emails are not on these blacklists. SpamCop, SORBS, and Spamhaus are only three of many spam reporting services on the web. Many blacklists will block IP’s and/or domains. It’s important to understand email deliverability best practices while approaching blacklist related issues.

Spamhaus

The Spamhaus Project is an international organization, based in both London and Geneva, founded in 1998 to track email spammers and spam-related activity.

The purpose of their organization is to create a “block” list of senders who have bad sending reputations. This list’s senders have shown poor sending practices by sending spam to Spamhaus’s partners or to their spam traps. Spamhaus will remember their IP and/or domain and publicly post them. Internet service providers and email servers use Spamhaus’ block list to reduce the amount of spam that reaches their users. You will have stronger email delivery if you can verify emails are not on these blacklists.

An IP or domain that’s put on Spamhaus has shown prolonged poor sending practices. During this time, its B2B & B2C deliverability will both be significantly diminished. It’s used by Yahoo, AOL, and Hotmail, as well as dozens of ISPs in Europe and uncountable corporate email servers. No other blacklist comes close to affecting this volume, making Spamhaus a top priority for monitoring and remediating.

 

 

SORBS (Spam and Open-Relay Blocking System)

SORBS has a block list of over 12 million host servers known to disseminate spam, phishing attacks, and other forms of malicious email. Over 200,000 corporations worldwide use SORBS, making it a very significant concern for B2B senders.

SORBS uses partner spam reports and spam traps to identify and list IP addresses that show bad sending practices. A sender can also be put on SORBS from a recommendation by anyone. Fortunately, in an effort to reduce false positives (senders who are careless and not malicious), SORBS will remove offending IPs on request after 48 hours of no spam. However, repeat listings will lengthen the delisting time and SORBS will eventually stop delisting a repeat offender.

SORBS has a low false-positive rate, making it very popular and therefore a top priority for monitoring and remediation, especially for B2B senders.

 

 

SpamCop

SpamCop is an email spam reporting service. If you are sending unsolicited bulk or commercial email, your recipients have the option to report your IP address to SpamCops analysis. This is where your IP address get on SpamCop’s blocklist. Therefore, an IP will be put on SpamCop from complaints of spam from that IP.

While filing spam reports, network administrators who use SpamCop will receive a list of IP addresses that are not allowed access into networks. So if you are sending email to an ISP that uses SpamCop from a computer whose IP is on their blocklist, your mail will be blocked and not deliver.

It takes upkeep to unblock your IP address from SpamCop. Mainly because, they handle blocking and unblocking on their own. If SpamCop continues to receive reports of spam originating from the networks you are responsible for, those networks will continue to be listed. If you can keep up with deliverability best practices , then you will be delisted by SpamCop automatically after 24 hours.

 

 

SpamCop, SORBS, and Spamhaus are only three of many spam reporting services on the web. To prevent from getting your IP or domain listed on a blacklist follow email deliverability best practices. Keep a clean list while updating hygiene continuously, stay on top of bounce logs, and keep an eye on the content you are sending out. Spam filters are continuously changing, therefore it’s good to have someone watching them, as it will prevent you from being blacklisted.





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