9 Greatest Inbox Placement Instruments to Hold Your Emails Out of Spam

I do know that you understand — there’s no level in chilly emailing in case your emails don’t land within the inbox.

However right here’s a enjoyable reality –
99% of chilly emailers fail to understand that their area popularity is tanking – earlier than it’s too late.

At first, your emails would possibly quietly slip into the “Different” or “Promotions” tab.

Quickly after, they begin touchdown in spam — and also you already know what comes subsequent.

To keep away from this, you want a software that provides you a heads-up when your inbox placement begins to drop — and helps you repair it earlier than the injury snowballs.

That’s the place inbox placement instruments are available in.

Nevertheless it’s not as simple because it sounds. That’s why, on this weblog, I’ll break down:

• What inbox placement instruments truly do
• The important thing options that matter
• And the perfect instruments you should use at this time to cease your emails from going to spam.

What Are Inbox Placement Instruments?

Inbox placement instruments assist you determine the place your emails are literally touchdown – inbox, spam, or the “promotions” tab.

These instruments run take a look at campaigns to simulate your precise chilly emails.

They present you ways totally different electronic mail suppliers (like Gmail, Outlook, Yahoo) are treating your emails — and why.

They’re like a well being test in your electronic mail deliverability. They warn you earlier than issues go improper so to repair points like:

• Low-quality content material that triggers spam filters
• Poor area popularity
• Lacking necessary technical setups like SPF, DKIM, or DMARC

In brief: Inbox placement instruments let you know in case your emails are getting delivered the place they need to be — and what to do in the event that they’re not.

Non-negotiable Options for Inbox Placement Instruments

There are a lot of inbox placement instruments available on the market, however not all of them are price your cash.

Why? As a result of most of them have rushed to the characteristic whereas compromising high quality.

Should you’re severe about staying out of spam, these are the options you possibly can’t compromise on:

1. Automated Inbox Placement Testing
2. Actionable Deliverability Analytics
3. Actual-Time Status Monitoring
4. Spam Set off Detection in Content material
5. Technical Setup Well being Checks (SPF, DKIM, DMARC)

1. Automated Inbox Placement Testing (That Mimics Actual Sending)

The software ought to run inbox exams utilizing actual seed inboxes throughout varied suppliers, reminiscent of Gmail, Outlook, Yahoo, and so on. And it ought to simulate precise sends (not simply theoretical exams) so to see how your actual emails behave throughout platforms.

2. Actionable Deliverability Analytics

It’s not sufficient to know the place your emails land — that you must know “why”. The software ought to break down key metrics like spam price, inbox price by supplier, area well being, and content material points.

And extra importantly, supply strategies you possibly can act on.

3. Actual-Time Status Monitoring

Your sender popularity can tank in a single day. The software should continuously monitor your area/IP popularity and warn you when it dips. Moreover, it ought to give you step-by-step directions to repair the difficulty earlier than it worsens.

4. Spam Set off Detection in Content material

Even a single improper phrase or phrase can flag your electronic mail. Good inbox instruments analyze your electronic mail content material and level out spam-triggering phrases, formatting errors, and damaged hyperlinks — all earlier than you hit ship.

5. Technical Setup Well being Checks (SPF, DKIM, DMARC)

Regardless of how good your content material is, lacking a technical setup means you’re going to spam. Your software ought to test for SPF, DKIM, and DMARC authentication, and let you know precisely what’s lacking or misconfigured — even higher if it helps repair them.

TL;DR – Fast Overview of Prime 9 Inbox Placement Instruments

Right here’s a fast rundown of the highest inbox placement instruments and what their greatest options are:

In-Depth Assessment of 9 Greatest Inbox Placement Instruments

1. Inbox Radar by Saleshandy: AI-powered software for chilly emailers who need higher electronic mail deliverability + outreach in a single platform
2. GlockApps: Greatest for deliverability nerds who need deep inbox testing throughout ESPs
3. Mailtrap: Constructed for devs and QA groups to check emails in a protected, pre-production surroundings
4. MxToolbox: Excellent for technical groups who need quick DNS, blacklist, and authentication diagnostics
5. Folderly: Nice for companies in search of a hands-off, AI-driven strategy to repair spam points
6. UnSpam: A simplistic software to test spam phrases and enhance the general inbox placement
7. Mailtester: Go-to software for fast inbox placement and spam checks with out complicated setups.
8. MailGenius: Designed for entrepreneurs and copywriters to optimize electronic mail content material and catch spam points earlier than sending.
9. Mailreach: Greatest for gross sales groups warming up domains and monitoring inbox placement over time

That can assist you resolve, I’ve distributed the evaluate into 4 main elements: Performance, Interface, Consumer Sentiment, and Pricing.

1. Inbox Radar by Saleshandy

Most chilly emailers are already accustomed to Saleshandy as an AI-powered chilly emailing platform.

However let me let you know, Saleshandy has not too long ago launched “Inbox Radar”, which is a standalone inbox placement software.  

Performance

Relating to performance, Inbox Radar doesn’t simply present you the place your emails land – it offers you a transparent plan to repair deliverability points earlier than they escalate.

You’ll be able to run automated inbox placement exams that may simulate precise campaigns throughout seed inboxes with suppliers like Gmail, Outlook, Yahoo, and extra.

The outcomes let you know precisely the place your electronic mail finally ends up – in your inbox, spam, or promotions/different folders.

Better part – The take a look at studies are shareable with a customized hyperlink ✨

You additionally get a spam rating breakdown based mostly in your electronic mail content material. Which means you possibly can determine which phrases or parts may be triggering spam filters.

What makes it much more helpful is that Inbox Radar is immediately related along with your Saleshandy account. So as a substitute of manually operating exams in a separate software, you possibly can regulate your campaigns based mostly on real-time inbox placement and spam well being.

P.S. It additionally checks for DNS information and alerts you if there are any technical misconfigurations that would influence your electronic mail deliverability.

Interface

From the UI perspective, you gained’t have any complaints. The Inbox Radar is constructed with a clear, intuitive interface, and you may run a take a look at in below 30 seconds.

As soon as the take a look at is completed, you get a visually-rich report that reveals the place your emails landed throughout suppliers, your spam rating, and setup points, if any (like lacking DKIM, SPF, and so on).

It’s the sort of UX that permits you to transfer quick, repair points rapidly, and get again to your marketing campaign.

Consumer Sentiment

• G2 – 4.6⭐/5 based mostly on 740+ evaluations
• Capterra – 4.5⭐/5 based mostly on 125+ evaluations

Because it’s a more moderen characteristic, you gained’t discover a whole lot of evaluations on G2 but.

However early customers (particularly Saleshandy prospects) are already calling it a “game-changer for chilly outreach.”

In truth, there’s an enormous adoption price for Inbox Radar.

Psst (Inside data): Inbox Radar has already executed greater than 130 inbox placement exams inside the first 15 days of its launch.

Worth

Because it’s a brand new launch, Saleshandy has supplied separate pricing for Inbox Radar, permitting customers to buy it based on their wants.

Its Inbox Starter plan begins at $23 per thirty days, which provides 15 inbox placement exams each month.

(Which is far more inexpensive than some other inbox placement software.)

2. GlockApps

Should you’re in search of chilly electronic mail deliverability insights that transcend surface-level spam checks, GlockApps is constructed for that.

It’s a go-to software for anybody who needs to audit their electronic mail sending efficiency.

Performance

GlockApps runs automated seed record exams — which means it sends your precise electronic mail to a predefined record of inboxes throughout totally different suppliers and geographies.

As soon as the take a look at is full, it reveals inbox vs. spam vs. lacking percentages, damaged down by supplier.

Moreover, it evaluates your electronic mail in opposition to well-liked spam filters, together with SpamAssassin, Barracuda, and Symantec.

This supplies detailed diagnostics on content material, HTML construction, and even domain-related points.

One of the best half – It additionally retains a monitor of your sender popularity.

GlockApps integrates with Postmaster Instruments and SNDS to trace your IP/area popularity, bounce charges, and spam complaints over time.

It doesn’t simply let you know what went improper. It helps you perceive the why, with sufficient technical depth so to repair points.

Interface

GlockApps leans extra in the direction of utility than aesthetics.

The dashboard is data-rich however might really feel barely outdated and even overwhelming to new customers.

Nonetheless, when you get the dangle of it, it’s filled with high-utility graphs, ESP-specific placement outcomes, spam filter responses, and much more.

Consumer Sentiment

• G2 – 3.7⭐/5 based mostly on 15+ evaluations
• Capterra – 4.8⭐/5 based mostly on 35+ evaluations

Customers on platforms like G2 and electronic mail advertising and marketing boards usually seek advice from GlockApps because the “go-to software for technical inbox testing.” It’s particularly well-liked with electronic mail entrepreneurs who handle a number of domains – both for themselves or their purchasers.

Many customers admire its transparency – the studies are data-heavy however credible, and in contrast to some instruments, GlockApps doesn’t simply label one thing “unhealthy” with out exhibiting you the proof.

The one difficulty customers had was with pricing. As a result of GlockApps is a bit pricey.

Worth

GlockApps gives a set pay-as-you-go credit score mannequin, so pricing is determined by the frequency of your take a look at runs.

• Free Plan: Sure (contains two exams)
• Important Plan: $59/month for 1 sending account
• Progress Plan: $99/month for 10 sending accounts
• Enterprise: $129/month for 20 sending accounts

3. Mailtrap

Should you’re coping with a excessive quantity of emails and wish to catch deliverability points beforehand, then Mailtrap is without doubt one of the most dependable instruments on the market.

Although it wants tech involvement, it’s well worth the selection.

Really, its use case is extra like a pre-flight guidelines. It simulates how your emails behave throughout environments and provides you clear insights into electronic mail construction, spam potential, and authentication points – all earlier than hitting ship.

Performance

Mailtrap works like a digital inbox, the place you possibly can take a look at emails from staging or manufacturing with out truly delivering them.

Because of this your crew can take a look at topic traces, headers, content material structure, and authentication information in a protected sandbox.

It flags:

• Spam triggers based mostly on trade filters
• Lacking or misconfigured SPF, DKIM, and DMARC
• Damaged HTML or formatting points
• Blacklisted sending IPs or domains

Mailtrap additionally gives Electronic mail API testing, so you possibly can take a look at triggered emails out of your app or CRM workflows, making it extraordinarily helpful for dev-heavy setups or transactional electronic mail testing.

Whereas it’s not a standard inbox placement software like Folderly or GlockApps, it helps make sure that when you begin sending, nothing breaks or bounces unnecessarily.

Interface

Clear, developer-focused, and extremely task-specific. Mailtrap’s UI isn’t flashy – however it’s constructed for pace and performance.

You’ll be able to simply swap between environments (staging, QA, manufacturing), view rendered electronic mail previews, and even test spam rating studies.

The setup can look scary at first, however it’s fairly simple, and the documentation is developer-grade.

Consumer Sentiment

• G2 – 4.8⭐/5 based mostly on 75+ evaluations
• Capterra – 4.8⭐/5 based mostly on 30+ evaluations

Mailtrap will get wonderful suggestions from engineering groups and QA specialists who take care of electronic mail infrastructure.

On G2, customers usually point out how straightforward it’s to arrange testing workflows, validate API triggers, and troubleshoot deliverability earlier than the primary person ever receives an electronic mail.

Word: It’s not constructed for outreach groups or entrepreneurs.

So in case you’re in search of inbox testing within the context of chilly electronic mail campaigns, you’ll possible have to pair it with one thing else like Inbox Radar or Mailreach.

Worth

Mailtrap gives usage-based pricing relying on quantity and surroundings wants.

• Free Plan: Sure (restricted testing for dev groups)
• Paid Plans: Begin at $14.99/month

As you progress in the direction of larger pricing tiers, you’ll get extra electronic mail credit, API options, and superior diagnostics.

4. MxToolbox

MxToolbox is historically identified for SMTP, DNS, and blacklist checks – however now, with Inbox Placement constructed into its Supply Heart, it’s additionally a powerful selection for testing.

Performance

MxToolbox’s inbox placement software works equally to each different seed testing methodology.

It offers your normal ESP-specific inboxing charges, spam folder habits, and lacking supply points.

It additionally contains DNS authentication checks + sender popularity insights.

One of the best half: It creates a visible render preview for content material points, reminiscent of extreme hyperlinks or spammy phrasing. This helps you repair points rapidly.

Word: There’s no standout characteristic that makes MxToolbox distinctive as an inbox placement software.

However it’s a strong addition for groups who already depend on MxToolbox for area well being and wish to convey deliverability diagnostics below one roof.

Interface

I’ll be trustworthy right here – MxToolbox has a really poor interface. However there’s a brighter facet.

The factor is, its instruments are well-labeled, responsive, and the studies are straightforward to know even in case you’re not tremendous technical.

You’ll additionally discover tons of assist docs and proposals if one thing flags up throughout a scan. 

Consumer Sentiment

• G2 – 4.1⭐/5 based mostly on 25+ evaluations
• Capterra – 4,5⭐/5 based mostly on 5+ evaluations

MxToolbox is extensively beloved by system admins, electronic mail consultants, and tech-savvy entrepreneurs.

Relating to inbox placement exams, it’s a good suggestion since their customers don’t have to change platforms. However there are only a few customers who solely use MxToolbox for operating inbox placement exams.

Worth

For Inbox Placement entry, that you must subscribe to a $129 per thirty days plan. It is because it comes below the “Ship Heart,” which itself shouldn’t be accessible totally free utilization.

5. Folderly

Folderly is an electronic mail deliverability software program that has an Inbox Insights software that comes with all the required options of an inbox placement software.

Performance

Folderly has automated inbox placement testing throughout main inbox suppliers. However extra importantly, it repeatedly displays the efficiency of your emails over time.

This contains the proportion that goes to spam, land in promotions, or hit the first inbox.

The platform runs AI-based diagnostics to detect points along with your content material, area popularity, and sending patterns.

And in contrast to most instruments, Folderly doesn’t simply offer you a report – it proactively suggests (and in some circumstances, applies) technical fixes like updating DNS information, tweaking sending volumes, or adjusting copy to keep away from filters.

In fact, all that is executed along with your prior permission. However isn’t that cool?

For groups scuffling with persistent spam placement or blacklists, Folderly acts like a long-term deliverability associate.

Interface

Folderly’s interface is fashionable, visible, and constructed for readability.

You get a easy dashboard that reveals your inbox efficiency over time, with spam proportion developments, sender popularity metrics, and warm-up progress.

It avoids technical muddle and focuses on exhibiting you simply what issues: your area well being and tips on how to repair what’s damaged.

For non-technical customers, the educational curve is minimal, and that’s an enormous a part of its enchantment.

Consumer Sentiment

• G2 – 4.8⭐/5 based mostly on 95+ evaluations
• Capterra – 4.8⭐/5 based mostly on 40+ evaluations

On G2, customers describe Folderly as a “lifesaver” for campaigns that had been caught in spam and couldn’t work out why.

It’s particularly well-liked amongst B2B groups which might be outbound at scale or businesses managing deliverability for purchasers.

Additionally, one notable constructive trait – Folderly has a useful assist crew!

Worth

Folderly has all the great options, and that’s why it comes with a heavy worth. It’s a paid plan that prices $64/month (for annual billing) and provides you limitless exams.

In order for you a light-weight model, then you possibly can take a look at its free model.

6. UnSpam

UnSpam is constructed for pace. Should you’re about to launch a marketing campaign and wish to test your content material for spam triggers, blacklists, or poor inbox placement, this software will get you solutions quick.

It’s a light-weight electronic mail deliverability checker that doesn’t overcomplicate issues. All that you must do is paste your electronic mail, run a take a look at, and get again a visible report that reveals how your electronic mail account carried out throughout main inbox suppliers and spam filters.

Performance

UnSpam runs your electronic mail by means of a seed inbox community throughout Gmail, Outlook, Yahoo, and others — and reveals you the place it lands: Inbox, Promotions, or Spam.

It additionally supplies:

• A Spam Murderer–based mostly spam rating
• Topic line grading based mostly on engagement greatest practices
• Blacklist checks in your IP/area
• Fundamental DNS validation for SPF, DKIM, and DMARC

What stands out is the real-time, visible suggestions — the software highlights dangerous key phrases, extreme punctuation, or formatting points that would tank deliverability.

It gained’t repair deep infrastructure issues, however for content-related checks, it’s quick and centered.

Interface

UnSpam’s UI is beginner-friendly and visible. The report card format makes it straightforward to know what handed, what failed, and what wants enchancment.

There’s no studying curve right here. You get instant suggestions in your topic line, HTML content material, authentication information, and inbox placement… all in a single scroll.

Consumer Sentiment

• ProductHunt – 4.8⭐/5 based mostly on 10+ evaluations

Customers love UnSpam for its simplicity and pace. On Reddit and different communities, it’s usually talked about as a useful software for validating emails earlier than launch.

Some reviewers do point out that it lacks depth for diagnosing extra technical points like DNS misconfigurations or sender rating dips, however that’s probably not the job UnSpam claims to do.

Worth

Not like different instruments on this record, UnSpam offers a beneficiant free model and flat-rate pricing for heavy customers:

• Free Plan: Contains fundamental exams with restricted month-to-month runs
• Fundamental Plan: Begins at $9/month for 50 spam exams
• Company: Begins at $29/month

It’s nice for individuals who wish to validate emails recurrently with out committing to complicated software program.

7. MailTester

MailTester is a dependable software that immediately analyzes your electronic mail content material, headers, and authentication setup.

Together with that, it has an inbox testing characteristic that lets you see in case your electronic mail would land within the spam folders of Gmail, Outlook, or iCloud.

Performance

Right here’s what MailTester does properly:

• Exams inbox placement throughout Gmail, Outlook, and iCloud
• Provides you a SpamAssassin-style spam rating, with insights into dangerous phrases, formatting, and content material points
• Checks your SPF, DKIM, and DMARC information
• Flags in case your area or IP is on any main blacklists
• Accepts electronic mail physique or uploaded contact information to run full deliverability checks

It’s not as deep as Folderly or GlockApps, however for fundamental inbox visibility and hygiene checks, it covers the necessities.

Interface

Mail tester is lifeless easy. You merely get to check electronic mail addresses.

It gained’t present you graphs or detailed analytics to interpret — only a rating and go/fail indicators with strategies.

Consumer Sentiment

• G2 – 4.2⭐/5 based mostly on 10+ evaluations
• Capterra – 3.3⭐/5 based mostly on 10+ evaluations

MailTester is commonly talked about on chilly electronic mail teams and by solo entrepreneurs who want a fast pre-send test.

In fact, it’s not designed for superior analytics or marketing campaign monitoring — however for spot-checking deliverability, it’s a strong choose.

Worth

Truthfully, MailTester’s pricing is just a little complicated. However if you wish to preserve issues clear, I recommend you go along with subscription-based pricing.

There it is possible for you to to get 10 exams for $39 per thirty days (billed month-to-month).

8. MailGenius

MailGenius is a free software that helps you determine why your emails would possibly find yourself in spam and tips on how to repair it.

It’s designed to catch content material points, lacking information, blacklists, and deliverability flaws earlier than you hit ship.

Performance

MailGenius works like this: You ship a take a look at electronic mail → It analyzes the message → You get a report with the next:

• Spam filter triggers (based mostly on frequent electronic mail filtering algorithms)
• SPF, DKIM, and DMARC validation
• Checks whether or not your IP or area is blacklisted
• Flags lacking or misconfigured headers
• Highlights dangerous content material, overuse of hyperlinks, or formatting points

Whereas it doesn’t give ISP-wise inbox placement stats (like Mailreach or GlockApps), it tells you how deliverable your electronic mail is prone to be – and that’s usually greater than sufficient for lean groups.

So, in case you’re in search of a fast however actionable report, MailGenius offers it to you with zero friction.

Interface

MailGenius’ interface is just a little old-school, however it’s easy and readable.

After sending your take a look at, you get a one-page scorecard exhibiting what handed, what failed, and why, with purple/yellow/inexperienced indicators and strategies on what to repair.

You gained’t discover marketing campaign dashboards or analytics right here, however that’s the purpose. It’s minimal, quick, and centered on readability.

Consumer Sentiment

• G2 – 4.5⭐/5 based mostly on 5+ evaluations

Folks love MailGenius as a result of it’s a free, no-login software to check if their emails are arrange appropriately.

It’s particularly well-liked amongst chilly emailers, small founders, and entrepreneurs doing fast QA.

On Reddit and chilly outreach Slack teams, customers usually point out they use it as a first line of protection earlier than operating placement exams on heavier instruments.

A number of energy customers want it had seed-based inbox placement testing, however for a software that prices nothing, the worth is surprisingly excessive.

Worth

MailGenius is totally free to make use of. No account wanted. No upsell. Simply go to the location, ship your electronic mail, and get your deliverability report.

9. MailReach

Mailreach is constructed for chilly emailers who wish to preserve their emails touchdown within the inbox persistently. It’s not simply an inbox placement software — it’s an all-in-one electronic mail warm-up + deliverability monitoring platform.

Performance

Mailreach has automated seed-based exams that present the place your emails land throughout Gmail, Outlook, Yahoo, and others

It additionally checks:

• Spam scores, DNS information, and blacklist standing
• Inbox placement pattern graphs to detect in case you’re slipping towards spam folders
• Every day well being studies to indicate progress and spotlight points
• A number of inbox assist for businesses or outreach groups managing a number of senders

Better part: It has an ongoing warm-up characteristic additionally. Which means – your emails are despatched and acquired by a trusted community of inboxes to progressively construct sender popularity.

Not like instruments that give one-time outcomes, Mailreach focuses on sustaining long-term inbox well being by means of lively intervention.

Interface

Mailreach’s UI is polished, fashionable, and intensely straightforward to make use of — even for non-technical groups.

The dashboard reveals a real-time placement price, area well being standing, warm-up progress, and spam placement historical past over time.

You’ll be able to join a number of inboxes, set warm-up schedules, and obtain detailed studies in just some clicks.

Consumer Sentiment

• G2 – 4.7⭐/5 based mostly on 40+ evaluations
• Capterra – 5.0⭐/5 based mostly on 20+ evaluations

Chilly emailers, SDR managers, and businesses love Mailreach for its automation, reliability, and ease of use.

On platforms like G2, Reddit, and chilly outreach communities, customers usually point out that it rescued their campaigns after inboxing points or helped new domains ramp up safely with out hitting spam folders.

Worth

The pricing is the perfect a part of MailReach. It has a pay-as-you-go kind of pricing mannequin and prices round $9.6 for 25 spam exams.

Should you choose a subscription mannequin, then you possibly can go for the Electronic mail Hotter + Spam Tester plan, which begins from $25 per thirty days.

Precaution is Higher Than Remedy – Take a look at Earlier than You Ship!!

Since you’re right here, you understand the significance of testing inbox placement. So, right here’s a suggestion.

Strive the newly launched Inbox Radar (by Saleshandy) and see how your emails carry out.

It comes with:

• Superior studies (with SpamAssassin Rating Evaluation)
• Actionable insights to enhance inbox placement
• Shareable studies

What’s holding up? Begin your Inbox Placement Take a look at Now!!

FAQs

1. Isn’t deliverability the identical as inbox placement?

Not fairly. Deliverability tells you whether or not your electronic mail was delivered. Inbox placement tells you the place your emails have landed (instance: inbox or spam).

There are probabilities the place your emails may be delivered however nonetheless find yourself in spam. That is the explanation why inbox placement instruments are wanted.

2. How do inbox placement instruments work?

Most inbox placement instruments work by sending your electronic mail to a community of seed inboxes (that are hosted throughout totally different ESPs like Gmail, Outlook, Yahoo, and so on).

Then they monitor the place your electronic mail lands (Inbox, Spam, or Promotions) and generate a report. In addition they analyze your content material, DNS authentication, and blacklist standing to provide you actionable fixes.

3. When ought to I run an inbox placement take a look at?

• Earlier than launching a brand new chilly electronic mail marketing campaign
• After warming up a brand new area
• In case your open charges immediately drop
• When altering electronic mail copy or utilizing sending instruments
• Earlier than growing the sending quantity

Mainly, anytime your inbox well being would possibly change, take a look at it. Consider it like a deliverability well being check-up.

4. Are free inbox placement instruments dependable?

Sure, to an extent. Instruments like MailTester, MailGenius, and UnSpam mean you can run free exams.

However in case you want ongoing monitoring or domain-level fixes, you will want a paid software like Inbox Radar (by Saleshandy), GlockApps, or Mailreach.

5. Can inbox placement instruments assure that my emails gained’t go to spam?

No software can assure inbox supply, however they drastically cut back the possibilities of ending up in spam by flagging purple flags early.

Consider them as your electronic mail high quality management layer — they let you know what’s improper, however you continue to must comply with greatest practices.

6. What’s the distinction between inbox placement instruments and electronic mail warm-up instruments?

Inbox placement instruments present you the place your emails are touchdown. Heat-up instruments enable you construct a sender popularity progressively by simulating actual conversations.

Platforms like Mailreach and Inbox Radar mix each, so that you get insights and safety in a single place.