Are inbox placement platforms a good strategy for email deliverability?
Matthew Whittaker
Co-founder & CTO, Suped
Published 11 Aug 2025
Updated 17 Aug 2025
6 min read
The idea of using inbox placement platforms, particularly those that employ automated engagement signals for email warming, sounds incredibly appealing at first glance. These services promise to boost your email deliverability by simulating positive recipient behaviors, such as opens, clicks, and even replies, using a network of verified inboxes.
The core concept is to trick Mailbox Providers (MBPs) and Internet Service Providers (ISPs) into thinking your emails are highly desired, thereby improving your sender reputation and increasing your chances of landing in the primary inbox. It’s an enticing proposition for anyone grappling with deliverability challenges, especially when faced with tough spam issues. Some former colleagues have even seen success with services like Allegrow.
However, the question remains: Are these platforms a genuinely good, sustainable strategy for long-term email deliverability? While the technology might seem cutting-edge, there are significant considerations and risks to weigh before relying on such services.
How automated engagement platforms work
These platforms often work by sending your emails to a proprietary network of inboxes, where automated systems then interact with them. This interaction aims to mimic natural user engagement, such as marking emails as important, moving them out of spam folders, or replying. The goal is to build a positive reputation for your sending domain and IP address by artificially boosting these engagement metrics.
For new senders, this can sometimes provide a quick initial boost, seemingly warming up an IP or domain faster than organic sending. It appears to bypass the natural, gradual process of building a sender reputation based on genuine user interaction. This can be particularly tempting for businesses looking for rapid results or struggling to recover from previous deliverability issues.
The technology, in essence, attempts to game the complex algorithms that ISPs use to determine inbox placement. By feeding these algorithms positive signals, these platforms try to persuade them that your email is legitimate and desired, even if your actual audience engagement doesn't yet reflect that.
Why ISPs frown upon it
While the immediate results might appear favorable, it's crucial to understand that major ISPs and MBPs actively monitor and combat artificial engagement. They invest heavily in sophisticated systems designed to detect and penalize senders who attempt to manipulate their filtering algorithms. This isn't a new fight for them, as they have long sought to maintain the integrity of their email ecosystems.
Many in the email community view these tactics as a violation of the spirit, if not the letter, of ethical email practices. There's a fine line between legitimate reputation building and what could be considered fraudulent activity. Historically, there have been legal actions against entities found to be circumventing spam filters and sending junk emails.
The risks of using engagement emulation
Using these platforms can lead to severe long-term consequences, including having your domain or IP blacklisted (or blocklisted), leading to significant deliverability issues. ISPs are constantly evolving their detection methods, making it increasingly difficult for such services to maintain their effectiveness without being identified and penalized.
If caught, the artificial boost to your sender reputation can quickly turn into a significant detriment. Mailbox providers might severely throttle your sending, divert all your emails to the spam folder, or even block your domain entirely, effectively putting you in inbox jail. This can be far more damaging than the initial deliverability problems you were trying to solve.
Short-term gains versus long-term sustainability
Any benefits derived from these platforms are likely temporary. Once you stop using the service and start sending to your actual audience, the artificial signals cease, and your true sending practices become apparent. If your core email program isn't built on best practices, your deliverability will likely revert to its previous state, or even worsen, as ISPs will now be wary of your sending patterns.
Sustainable deliverability isn't about gaming the system, but about earning the trust of ISPs and your recipients. This means consistently sending wanted emails, maintaining clean lists, and adhering to authentication standards. These fundamentals are what truly build a positive, lasting sender reputation.
Quick fix approach
Artificial engagement: Relies on automated systems to simulate positive recipient actions.
Short-term gains: May show immediate, but temporary, improvements in inbox placement.
High risk: Susceptible to detection and severe penalties from ISPs.
Sustainable deliverability strategy
Genuine engagement: Focuses on sending valuable content to engaged subscribers.
Long-term reputation: Builds lasting trust with ISPs through consistent good practices.
Low risk: Aligns with ISP policies, ensuring reliable inbox placement.
Therefore, while some anecdotal evidence suggests short-term improvements, these platforms often come with significant long-term risks and do not address the fundamental issues impacting your email deliverability.
Building genuine sender reputation
Instead of relying on automated engagement, the most effective strategy for improving email deliverability and ensuring inbox placement lies in adhering to established best practices. This involves a multi-faceted approach that focuses on genuine sender reputation building.
Key components of a robust deliverability strategy include maintaining a clean and engaged email list, implementing proper email authentication protocols like SPF, DKIM, and DMARC, and consistently sending valuable, relevant content to your subscribers. Regularly monitoring your sender reputation through tools like Google Postmaster Tools can provide insights into your performance and help you identify potential issues early.
Furthermore, ensuring your emails are free of spammy content, broken links, or misleading information is vital. It’s also important to manage your sending volume and frequency to avoid overwhelming recipients or triggering spam filters. A gradual and organic approach to list growth and engagement will always yield more reliable and sustainable results than any artificial methods.
Regularly performing inbox placement testing using legitimate seed lists and analyzing the results can provide actionable data to fine-tune your strategy. This allows for proactive adjustments based on real-world performance, rather than relying on deceptive signals.
Views from the trenches
Best practices
Maintain a clean and validated email list to reduce bounces and spam trap hits.
Implement strong email authentication: SPF, DKIM, and DMARC are crucial for verifying your sending identity.
Send engaging and valuable content that your audience wants to receive and interacts with.
Common pitfalls
Relying on artificial engagement platforms to boost deliverability, as this can lead to severe penalties.
Ignoring genuine audience engagement metrics, such as open rates and click-through rates.
Sending to unengaged or old lists, which can increase complaints and spam trap hits.
Expert tips
"Focus on providing genuine value to your subscribers. This is the only sustainable way to build a positive sender reputation."
"ISPs are getting smarter. Any attempt to game the system will eventually be detected and penalized."
"Regularly segment your audience and tailor your content to improve engagement, this naturally boosts inbox placement."
Expert view
Expert from Email Geeks says that using services that generate artificial engagement is generally frowned upon by the email industry.
2022-08-17 - Email Geeks
Expert view
Expert from Email Geeks says that one provider actively seeks out and blocks mailboxes associated with these types of seed networks.
2022-08-17 - Email Geeks
The path to sustainable deliverability
In summary, while inbox placement platforms that use automated engagement signals for email warming might offer an appealing shortcut to better deliverability, they are generally not a good long-term strategy. The benefits are often fleeting, and the risks of damaging your sender reputation are substantial.
Mailbox providers are sophisticated and continually evolving their algorithms to detect artificial manipulation. Investing in authentic email practices, such as building an engaged audience, maintaining list hygiene, and ensuring proper authentication, is the only truly reliable path to consistent inbox placement. This foundational work will ensure your emails reach recipients' inboxes and stay there, fostering real engagement and positive results for your email program.
Prioritizing the fundamentals of email deliverability will lead to sustainable success. This approach builds genuine trust with ISPs and recipients, which is invaluable for any email sender.
Deliverability factor
Why it matters
Email list hygiene
Sending to spam traps or invalid addresses can severely damage your sender reputation and lead to blocklisting.
Email authentication
SPF, DKIM, and DMARC prove your emails are legitimate, reducing the likelihood of being marked as spam. Learn more about DMARC monitoring.
Content quality
Relevant, engaging, and personalized content drives positive interactions, signaling to ISPs that your emails are valued by recipients.
Sender reputation
A strong sender reputation, built on consistent good sending practices, is the most crucial factor for achieving high inbox placement.