What causes bounces related to Spamhaus SBL-XBL database and how to troubleshoot?

Email marketer from StackOverflow explains that to get delisted from Spamhaus, you must first resolve the issue causing the listing. Then, follow Spamhaus's delisting process, which may involve submitting a request and providing evidence of remediation.

Email marketer from Sendinblue explains that Spamhaus listings can cause hard bounces. They advise implementing proper list hygiene, removing inactive subscribers, and ensuring recipients have explicitly opted-in to receive emails.

Email marketer from Neil Patel explains that being listed on blocklists like Spamhaus can severely impact email deliverability. He advises maintaining good sending practices, authenticating email with SPF, DKIM, and DMARC, and monitoring IP reputation to avoid listings.

Email marketer from Reddit shares that they experienced a Spamhaus listing due to a compromised WordPress plugin. They recommend regularly updating all software and plugins, using strong passwords, and monitoring server activity for suspicious behavior.

Email marketer from Litmus explains that one of the biggest issues with email deliverability is poor data quality - meaning people who aren't expecting your email could mark it as spam resulting in more spam complaints. They advise that ensuring your list is upto date is one of the best ways to avoid deliverability issues.

Email marketer from EmailGeeks Forum shares that seeing bounce messages indicating a Spamhaus listing can often mean the recipient's server is misconfigured or has a stale blocklist. They recommend checking with the recipient directly to see if they can resolve the issue on their end.

Email marketer from GlockApps shares that proactive blocklist monitoring is crucial for maintaining a good sender reputation. Using tools like GlockApps, you can check if your IP address is listed on Spamhaus and other major blocklists, allowing you to take immediate action to resolve any issues.

Email marketer from Mailjet shares that sudden increases in bounce rates due to Spamhaus listings indicate potential problems with sending practices or a compromised server. They suggest checking server logs, reviewing recent email campaigns, and contacting Spamhaus for clarification.

Expert from Email Geeks shares that over the last few months, Spamhaus has been turning off open resolver access. Some badly configured servers are incorrectly blocking mail. If the IPs aren’t listed at Spamhaus, that’s likely the problem. These domains are likely not getting much of their mail, so they’re unlikely to be important for either the recipient or the senders.

Expert from Email Geeks explains that if the rejection message doesn’t include the TXT record from blocklist lookup, one should think twice about whether it’s correctly implemented. In the case of Spamhaus that includes a URL.

Expert from Email Geeks shares that they see a few of these bounces as well. It's either a stale local SBL sync (i.e. issue resolved) on the recipient side or misconfigured systems, and usually small in number.

Expert from Word to the Wise explains that a high complaint rate can lead to your email program being blocklisted on DNSBLs such as Spamhaus. They recommend actively managing recipient expectations and focusing on acquiring and retaining engaged subscribers.

Expert from Spam Resource explains that one of the main reasons for being added to the Spamhaus SBL is due to spam complaints. They recommend following best practices by using double opt-in, not emailing purchased lists, using list hygiene and ensuring it is easy for recipients to unsubscribe.

Expert from Spam Resource emphasizes the importance of proactive reputation management to avoid blocklists like Spamhaus. They suggest monitoring your IP and domain reputation, setting up alerts for blocklist listings, and taking immediate action to address any issues that arise.

Documentation from cPanel explains that using SPF and DKIM records helps prevent your emails from being flagged as spam, reducing the likelihood of bounces related to blocklists like Spamhaus. They provide instructions on how to configure these records in cPanel.

Documentation from Postfix explains that correctly configuring SPF (Sender Policy Framework) records is crucial for email authentication and preventing your emails from being marked as spam. It provides guidance on creating and implementing SPF records for Postfix mail servers.

Documentation from Spamhaus explains that the XBL (Exploit Block List) lists IP addresses infected with bots, viruses, trojans, or other malware. It emphasizes cleaning the infected system and following their delisting procedure.

Documentation from Spamhaus explains that the SBL (Spamhaus Block List) lists IP addresses involved in spamming or other malicious activities. It advises checking the listed IP on their website to understand the reason for the listing and the delisting process.

Documentation from Microsoft Support explains that Non-Delivery Reports (NDRs) containing Spamhaus references indicate that the recipient's mail server is blocking emails from your IP address due to a Spamhaus listing. It advises contacting the recipient's IT department or email provider to request whitelisting or investigate the cause of the listing.

Documentation from Hetzner Docs explains that Spamhaus listings often result from compromised servers sending spam. It recommends identifying the cause of the spam (e.g., compromised accounts, vulnerable scripts), securing the server, and then requesting delisting from Spamhaus.