Email Marketing


When you run an email test via GlockApps, you will oftentimes be frustrated by a warning that your sending IP is blacklisted. Blacklists work as firewalls on the path that your messages will use to the recipient’s mailbox. The consequence is that your legitimate messages do not reach their destination. However, blacklists can play a significant role by blocking malware, viruses, phishing emails, and other spam sent from known spam-emitting sources. There’s a need to understand how blacklists work because they form part of your life in email marketing. Ensure you’ve understood their working and what you should do to keep off your IP address from the blacklist. However, before discussing various blacklists in details, it’s worth checking out our super good tools that will help you in getting more clients at the maxalternative website.


The backscatterer blacklist shows a user that their server is experiencing bounces to external users. The term “backscatter” is also known as outscatter, blowback, misdirected bounces, or collateral spam. As such, you can define backscatterer as the incorrect bounce message sent by mail servers. This is often sent after incoming spam comes across a server.

How Backscatter Blacklist Works

The focus of backscatter is the kind of traffic that an email server IP address is doing. For instance, if an IP address is listed on the non-delivery report, it ends up on the backscatter blacklist.

How to remove yourself from the Backscatter Blacklist

Users cannot manually request removal from the backscatterer blacklist. The IP address can only be monitored and removed when the spam activity ceases. However, the backscatterer blacklist allows users to look up and even test their IP address on their website.

How to reduce your risk of getting onto the Backscatterer blacklist

There are several ways you can avoid listing on a blacklist but the best one is to engage in proper email practices including:-

  • verifying all email addresses before you attempt an outreach
  • Ensuring you do not send unnecessary emails
  • Avoiding the use of words considered spam within your email drafts
  • Keeping your send volumes to the minimum, 30-50 per day if you’ve been using an email warmup service for at least 30 days. Blacklist stands out within the list of blacklists in that it does not list the IP addresses based on reported spam. For this reason, the impact posed by listing is minimal on email deliverability. Legitimate email senders may never find their IP addresses listed on is therefore a free service used for detecting attacks on its servers using SSH-, FTP-, Webserver, Mail-Login-, etc then report the attacks to the abuse departments of infected hosts. Since doesn’t block requests and emails, third-party administrators can configure their servers to reject a connection if it’s listed in the There’s a need to find the addresses of the attacking host and its reports. You can use the following information to do this:-

  • Whois-abuse@, remarks, abuse-mailbox, security@
  • The contact database from the Abusix
  • The Ripe Abuse Finder

You need to know that errors occur and may sometimes list innocent IP addresses not involved in computer attacks or fraud. To ensure these errors are minimized, is structured in such a way that it can communicate with other platforms involved in the maintenance of blacklists and whitelists of domain names and IP addresses.  Consequently, uses the allow lists from and Spamhaus and the blocklist from the Tor project as a way of reducing false positives or listings of “clean” IP addresses.

Key details you need to know about

  • is a public blacklist
  • The listing occurs at the IP level
  • Criteria to get listed is sending spam to the fraud or abuse specialist, whose servers are attacked often on the Secure Socket Shell (SSH). SSH is an encrypted network protocol that ensures a remote login to securely operate over an unsecured network. The servers can also be attacked on mail-login, webserver, File Transfer Protocol (FTP) as well as other services.
  • impact on deliverability is minimal and legitimate senders may never see listings on this blocklist.
  • The regional impact can be described as global
  • If you want to get removed from the you have to note that listings expire after 48 hours and if the problem is resolved before those 48 hours, you can then submit your IP for delisting.

Delisting from

If you’re unfortunate to have your mail server listed on or compromised, you need not panic because the listing automatically expires in 48 hours. In case you detect that the problem that caused the listing was unresolved, remove the IP address from the before the automation expires. Therefore, you can delist from the by following a simple procedure, go to delist page, enter your IP address and click on “delete”. In 60 minutes, the IP will be removed.  

How to Avoid Blacklisting by Blocklist.De

As indicated earlier, does not deal with IP addresses that send spam. It has been developed to detect and block the IP addresses that involve in computer fraud, attacks, or server abuse. As a legitimate email sender, you may never encounter a situation where your IP address is listed on Nevertheless, secure your mail server through regular security checks of the server to ensure no viruses, an open proxy, a Trojan sending spam, or unusual misconfiguration that could cause your IP address listing on


As the old saying goes, prevention is better than cure. There are more advantages to managing your servers properly than working on delisting. You can achieve this by monitoring your mail queue. This queue is the real indicator of the number of emails sent from your server. If the emails in the queue shoot up, it indicates a real-time case of spamming. You can also add systems that will alert you automatically when your email counts have gone beyond a particular limit. Modification of the settings of your email server can help you avoid backscatterer blacklisting. Another proactive measure of avoiding backscatter blacklist is ensuring malicious files are kept away from the domain content through a periodic scan of the website files. Finally, delisting from the is a simple procedure that involves going to the delist page, entering your IP address, and then clicking “delete”. In at least 60 minutes, your IP will be removed. 

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