Should I use a backup ESP when my primary ESP is blocked by Spamhaus?

Email marketer from Email Geeks states that triggering Spamhaus indicates a portion of your database is valueless and toxic, requiring cleansing and implementation of data collection point verifications like captcha and confirmed opt-in.

Email marketer from SendGrid details the importance of IP warming when using a new ESP or IP address, which implies that a backup ESP would require a proper warm-up to avoid deliverability issues, making a quick switch problematic.

Email marketer from HubSpot explains that improving email deliverability requires a focus on sender reputation, list hygiene and authentication, rather than switching ESPs.

Email marketer from Email Geeks notes that switching to a backup ESP after a Spamhaus block on the primary ESP is likely to get you kicked off the backup provider, as Spamhaus listings rarely occur due to single errors.

Email marketer from GMass shares that switching to a backup ESP is not the right answer, because you're taking the problem with you. Fix the problem first.

Email marketer from Email Marketing Forum shares how they were listed with Spamhaus and worked with them to prove the problem was fixed and not try to hide the bad practice.

Email marketer from Reddit explains that a Spamhaus listing is a sign of poor list hygiene and switching ESPs won't solve the underlying problem.

Email marketer from ActiveCampaign explains that it's important to monitor key metrics like bounce rates and spam complaints to troubleshoot deliverability problems before considering a different ESP or IP.

Email marketer from NeilPatel.com explains that maintaining a good sender reputation is crucial for email deliverability, implying that switching to a backup ESP without addressing reputation issues will likely lead to the same problems.

Email marketer from Litmus explains how to solve your deliverability problems. Focusing on data quality and authentication.

Expert from Spam Resource responds with 'The first thing to know is that you have to remediate. A listing means you are doing something (accidentally or deliberately) that the listing organization thinks is bad, and you have to fix it. And if you’re using a service provider they should be helping you understand why you’re listed and how to get it resolved.'

Expert from Email Geeks explains that a backup ESP is not a functional solution for Spamhaus issues because it is difficult to keep it warm enough to switch volume quickly, requiring a warmup period for the new IP/Domain combination. Additionally, resolving the Spamhaus listing directly may be faster than warming up new infrastructure.

Expert from Word to the Wise shares "Many people succeed in getting their listings removed, only to find themselves relisted shortly thereafter, so what happened? In most of those instances, the reason for the listing was not adequately addressed. While the listing may have been removed, the underlying issues may have remained, resulting in the source to be relisted."

Expert from Email Geeks says that, in their experience, Spamhaus issues are generally driven by spam traps and list hygiene problems, not a general delivery issue affecting everyone.

Documentation from Microsoft details practices for keeping email out of spam. This implicitly suggests that maintaining good sending practices is more important than relying on a backup ESP.

Documentation from Spamhaus.org details the steps required for delisting, emphasizing the need to address the root cause of the listing and prevent recurrence rather than simply switching providers.

Documentation from Mailchimp explains the importance of email authentication (SPF, DKIM, DMARC) for sender reputation. Using a backup ESP without proper authentication setup can harm deliverability.