Why Not Just Use Deliverability Tools and Fig- ure It Out Ourselves?

February 12, 2026

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Email tools are valuable. They provide data that would be impossible to gather manually. Reputation databases, authentication checkers, email testing platforms, mailbox provider feedback loops, inbox placement testers – these are all necessary for modern email operations. If you’re not using tools, you’re flying completely blind.

The problem isn’t the tools themselves. The problem is the gap between data and interpretation. Tools are excellent at providing information. They’re terrible at explaining what that information means in your specific context.

Tools Provide Data, Not Judgment

A reputation monitoring tool will show you your IP reputation score with Spamhaus or your domain score with Return Path. It will show you a number, maybe color-coded green or red. It won’t tell you whether that score is actually affecting your deliverability right now, or whether your reputation damage is coming from somewhere else entirely, or whether your reputation loss is temporary or permanent.

Let me give you a concrete example. A cold email company we worked with had an IP with a “poor” reputation score on one monitoring service. They were panicking. But when we dug into the data, the IP’s reputation had been stable for six months, the mail was landing in the inbox consistently, and complaints were low. The reputation score was old data. They didn’t need a new IP; they needed to stop looking at a monitoring tool that was giving them false alarm signals.

An authentication checker will verify that your SPF, DKIM, and DMARC are configured correctly. It will give you a checkmark next to each one. It won’t tell you whether your configuration is actually right for your specific sending infrastructure, or whether a recent change to your DNS broke something subtle that the testing tool doesn’t check for, or whether your DMARC policy is catching legitimate mail you didn’t intend to catch, or whether you need BIMI to complete the picture.

An email testing tool will show you how your mail renders across clients, maybe flag obvious spam trigger words like “CLICK HERE NOW” or “limited time.” It won’t tell you whether your engagement rate is actually good (good for whom? For new cold prospects it’s 5%, for a warm marketing list it should be 30%+), or whether you’re being filtered silently by Gmail even though your test passed, or whether the same content that passes testing in Outlook gets flagged in Gmail because Gmail is looking at your sender reputation and seeing complaint signals that the testing tool doesn’t see.

A mailbox provider feedback loop will show you complaint counts and rates. It won’t tell you whether those complaints are coming from disengaged subscribers you should have unsubscribed months ago, or whether they signal a list quality problem, or whether they’re going to tank your reputation if you don’t address the underlying cause, or whether your complaint rate is normal for your industry or a red flag.

Green Checkmarks Don’t Guarantee Inbox Placement

This is the critical point: mail with perfect authentication, zero technical errors, and good reputation metrics can still go to spam. It happens regularly. A company will run their mail through every testing tool available, get green checkmarks on authentication, pass the spam filter test, get clean rendering reports, and send a campaign to thousands of subscribers. Then 40% of it lands in the spam folder anyway.

When this happens, the company is left debugging on their own. They run the mail through tools again, find no obvious problems, review the content word by word looking for spam triggers, and have no clear next step. The tools have reached the end of their usefulness. They’ve provided information but not insight.

The real problem was likely one of these:

  • Reputation was declining silently (tools showed green, but mailbox providers were seeing behavior patterns that tools don’t measure)
  • Sending behavior changed in a way that triggered filters (volume spike, cadence change, list age shift, geography expansion)
  • The mail was technically correct but triggering newer, smarter filtering based on content patterns that testing tools don’t evaluate
  • Multiple sending streams were competing for the same reputation (the company didn’t realize this because each platform’s tools showed data in isolation)
  • Complaint feedback wasn’t being monitored in the right timeframe (you’re looking at last month’s complaints, but reputation damage happened two weeks ago)

These are system-level problems that require pattern recognition informed by experience across many sending contexts. They’re not obvious from the tools alone.

The Experience Gap

When a consultant evaluates your setup, we’re doing what tools fundamentally can’t do: making judgment calls based on patterns we’ve seen across hundreds of similar situations.

We know what a reputation score means in context of your sending volume and industry. A “poor” score might mean nothing for a cold email sender (who expects complaint rates to affect reputation) but everything for a transactional sender (who should have nearly zero complaints). We know how aggressive you can ramp volume without triggering filters based on your domain’s history. We know which configuration patterns work together and which ones create conflicts.

We know the difference between a temporary deliverability dip (probably just filters being cautious) and the start of reputation damage (which compounds over time). We know what language patterns trigger filters in financial services vs healthcare vs ecommerce. We know which mistakes look small but compound into crises over months.

None of this is in the tools. All of it matters.

Tools as Part of the System

We don’t recommend that you stop using tools. We recommend building a monitoring system where tools feed you data, and experienced judgment interprets that data in the context of your specific situation.

During a diagnostic session, we assess your current tooling and help you build better monitoring. We help you understand which tools are giving you real signal (actionable information) and which are generating noise (data that doesn’t actually matter). We identify where you’re flying blind (what metrics you’re not monitoring that matter). We often recommend specific tools or monitoring approaches that we found effective for situations similar to yours. We also tell you which tools you’re over-investing in.

The gap between tools and results is exactly where consulting adds value. You keep your tools, you use them more effectively based on better interpretation, and you get the judgment layer that prevents mail crises before they happen.

We’d love to learn more about your business, email deliverability and outreach goals, and see if we might be able to help.

Whether you have questions about what we do, how Protocol works, or you’d just like to pick our brains on some of our best practices, we’d be happy to chat.

Schedule a call with our Revenue Director, Chrisley Ceme.

Talk To Chrisley

Email tools are valuable. They provide data that would be impossible to gather manually. Reputation databases, authentication checkers, email testing platforms, mailbox provider feedback loops, inbox placement testers – these are all necessary for modern email operations. If you’re not using tools, you’re flying completely blind.

The problem isn’t the tools themselves. The problem is the gap between data and interpretation. Tools are excellent at providing information. They’re terrible at explaining what that information means in your specific context.

Tools Provide Data, Not Judgment

A reputation monitoring tool will show you your IP reputation score with Spamhaus or your domain score with Return Path. It will show you a number, maybe color-coded green or red. It won’t tell you whether that score is actually affecting your deliverability right now, or whether your reputation damage is coming from somewhere else entirely, or whether your reputation loss is temporary or permanent.

Let me give you a concrete example. A cold email company we worked with had an IP with a “poor” reputation score on one monitoring service. They were panicking. But when we dug into the data, the IP’s reputation had been stable for six months, the mail was landing in the inbox consistently, and complaints were low. The reputation score was old data. They didn’t need a new IP; they needed to stop looking at a monitoring tool that was giving them false alarm signals.

An authentication checker will verify that your SPF, DKIM, and DMARC are configured correctly. It will give you a checkmark next to each one. It won’t tell you whether your configuration is actually right for your specific sending infrastructure, or whether a recent change to your DNS broke something subtle that the testing tool doesn’t check for, or whether your DMARC policy is catching legitimate mail you didn’t intend to catch, or whether you need BIMI to complete the picture.

An email testing tool will show you how your mail renders across clients, maybe flag obvious spam trigger words like “CLICK HERE NOW” or “limited time.” It won’t tell you whether your engagement rate is actually good (good for whom? For new cold prospects it’s 5%, for a warm marketing list it should be 30%+), or whether you’re being filtered silently by Gmail even though your test passed, or whether the same content that passes testing in Outlook gets flagged in Gmail because Gmail is looking at your sender reputation and seeing complaint signals that the testing tool doesn’t see.

A mailbox provider feedback loop will show you complaint counts and rates. It won’t tell you whether those complaints are coming from disengaged subscribers you should have unsubscribed months ago, or whether they signal a list quality problem, or whether they’re going to tank your reputation if you don’t address the underlying cause, or whether your complaint rate is normal for your industry or a red flag.

Green Checkmarks Don’t Guarantee Inbox Placement

This is the critical point: mail with perfect authentication, zero technical errors, and good reputation metrics can still go to spam. It happens regularly. A company will run their mail through every testing tool available, get green checkmarks on authentication, pass the spam filter test, get clean rendering reports, and send a campaign to thousands of subscribers. Then 40% of it lands in the spam folder anyway.

When this happens, the company is left debugging on their own. They run the mail through tools again, find no obvious problems, review the content word by word looking for spam triggers, and have no clear next step. The tools have reached the end of their usefulness. They’ve provided information but not insight.

The real problem was likely one of these:

  • Reputation was declining silently (tools showed green, but mailbox providers were seeing behavior patterns that tools don’t measure)
  • Sending behavior changed in a way that triggered filters (volume spike, cadence change, list age shift, geography expansion)
  • The mail was technically correct but triggering newer, smarter filtering based on content patterns that testing tools don’t evaluate
  • Multiple sending streams were competing for the same reputation (the company didn’t realize this because each platform’s tools showed data in isolation)
  • Complaint feedback wasn’t being monitored in the right timeframe (you’re looking at last month’s complaints, but reputation damage happened two weeks ago)

These are system-level problems that require pattern recognition informed by experience across many sending contexts. They’re not obvious from the tools alone.

The Experience Gap

When a consultant evaluates your setup, we’re doing what tools fundamentally can’t do: making judgment calls based on patterns we’ve seen across hundreds of similar situations.

We know what a reputation score means in context of your sending volume and industry. A “poor” score might mean nothing for a cold email sender (who expects complaint rates to affect reputation) but everything for a transactional sender (who should have nearly zero complaints). We know how aggressive you can ramp volume without triggering filters based on your domain’s history. We know which configuration patterns work together and which ones create conflicts.

We know the difference between a temporary deliverability dip (probably just filters being cautious) and the start of reputation damage (which compounds over time). We know what language patterns trigger filters in financial services vs healthcare vs ecommerce. We know which mistakes look small but compound into crises over months.

None of this is in the tools. All of it matters.

Tools as Part of the System

We don’t recommend that you stop using tools. We recommend building a monitoring system where tools feed you data, and experienced judgment interprets that data in the context of your specific situation.

During a diagnostic session, we assess your current tooling and help you build better monitoring. We help you understand which tools are giving you real signal (actionable information) and which are generating noise (data that doesn’t actually matter). We identify where you’re flying blind (what metrics you’re not monitoring that matter). We often recommend specific tools or monitoring approaches that we found effective for situations similar to yours. We also tell you which tools you’re over-investing in.

The gap between tools and results is exactly where consulting adds value. You keep your tools, you use them more effectively based on better interpretation, and you get the judgment layer that prevents mail crises before they happen.

Our Revenue Director, Chrisley Ceme, is leading the Triggered Outbound program.Chrisley’s gone deep on this strategy and can walk you through:

  • How Triggered Outbound fits with your outbound goals
  • What triggers are available (and what’s possible within our platform)
  • Pricing, onboarding, and getting started
Talk To Chrisley

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Senders Case Studies

See All Case Studies

Momofuku

Founded by chef David Chang, Momofuku is a renowned culinary brand with a nation-wide presence, including restaurants and an online store with delicious goods. They ran into an issue with their email sending – high bounce rates and blocked sending. With hundreds of thousands of people on their email lists eager to stay informed, and an impeccable reputation to uphold, Momofuku wanted to nip this problem in the bud quickly.

  • Momofuku reached out to Senders to run a diagnostic test on their sending infrastructure and find the root cause
  • Senders deliverability experts discovered an issue with their DMARC, which was preventing emails from being sent, as their WordPress wasn't aligned with their SPF
  • Senders provided the most effective solution helping Momofuku restore safe sending, and suggested next steps to ensure everything keeps running smoothly on their end
  • The client reported that Senders helped identify the problem and got them back on track 

Andrew Yeung

Where many others see a problem, Andrew sees an opportunity. His work may center around product leadership at Google (and previously Meta), but his true calling is all about bringing brilliant change-makers together.

How it started: Andrew hosted small-scale dinners for a handful of people at the peak of the pandemic in NYC, to enable safe connections during the most isolating times. How it’s going: His events now count as many as 2,000 tech leaders each, and he has set up 100+ such parties for more than 15,000 people in the past couple of years. Andrew understands that if two minds are better than one, putting two thousand together, preferably in the same room, can make a profound difference.

Given the impact of his community-building efforts, people want him to be able to reach out – and email is often the best way to do so. So, we helped out a bit.

  • Andrew came across deliverability issues that prompted him to get in touch with Senders and look into the best possible solutions
  • The Senders team made the necessary domain configuration adjustments, with a focus on the domain’s email authentication settings to enhance security and deliverability
  • The SPF record was updated to include “Brevo” (Sendinblue) to strengthen authentication and reduce the chance of landing emails into spam
  • The DMARC policy update enabled better readability of DMARC reports for human analysts, which is essential for preventing email spoofing and phishing
  • Senders fixed the missing DKIM setup with Google, so that it now shows the email hasn’t been tampered with in transit
  • As a result, the client now has better, more stable email deliverability and security

Myrina.ai

Stands out as a trailblazer in empowering women entrepreneurs through technology and a supportive community.

Myrina.ai offers a cutting-edge range of AI-powered SaaS marketing and sales tools that cater specifically to female entrepreneurs and women-led businesses. Myrina.ai enables users to automate marketing and sales, while helping them scale their authentic selves while saving time and boosting conversions. Their Myrina’s Army community fosters a supportive platform that champions female entrepreneurs and their values, empowering them to conquer barriers and achieve their business goals. The company's dedication to providing not only top-notch technological solutions but also a platform for networking and mentorship underscores their commitment to fostering success among women in the entrepreneurial space.

Naturally, they wanted to make sure their email sending infrastructure was set up correctly to protect their reputation and successfully reach their recipients. Our deliverability team worked with the client’s team on:

  • Aligning the client’s three domains with Amazon to make sure they are compatible and optimized in order to integrate with Amazon’s system
  • Setting up a proper DMARC policy to protect their domains against unauthorized use and phishing scams
  • Enhancing email deliverability as well as security, so that each email sent from these domains can be properly authenticated and more likely to land in the right inbox
  • As a result, the client can protect the reputation of their business and domains, while safely sending out their email campaigns

Physician’s Choice

Sometimes the sheer number of options of any product can be daunting – how on earth do you pick the right one? This is especially true with supplements, as we can find them just about anywhere, but we can rarely understand a third of the ingredients listed. Unlike most, Physician’s Choice provides supplements with pure, potent ingredients that work. No fillers or “proprietary” blends with unidentified ingredients. They do the research, so you don’t have to.

  • The client’s team spotted issues with DMARC failures in Google Postmaster
  • The Senders deliverability team worked with the client to update the DMARC configuration to enable report collection
  • The client is now able to obtain detailed reports to diagnose the exact causes of the failures and prevent them in the future with proper DMARC setup