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Folderly Email Deliverability Software logo
Folderly
Optimize Email Deliverability Effortlessly
4.9

( 95 )

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Folderly Reviews: 4.9/5 — Highly Rated

Folderly Overview
What is Folderly?

Folderly is an email deliverability platform that companies use to improve email deliverability and ensure that their emails get delivered straight to the inbox of their recipients and don’t end up in the spam folder. Core features of the software include email health checks, spam testing, as well as email reputation monitoring. The intent of Folderly is to ensure that users boost engagement and revenue.

Company BELKINS INC.
Year founded 2017
Company size 51-200 employees
Headquarters Dover, Delaware, United States
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Folderly Product Details
Capabilities
AI
API
Segment
Small Business
Mid Market
Enterprise
Deployment Cloud / SaaS / Web-Based
Training Documentation
Languages English
Folderly Features
A/B Testing
API Access
Authentication-issue tools (SPF, DKIM, DMARC analysis)
Authentication monitoring & SPF/DKIM/DMARC tools
Automated Testing
Automated warm-up / adaptive scheduling
Automatic seed engagement (opens, clicks, inbox moves)
Blacklist / feedback loop / complaint reporting
Blacklist Monitoring
Bounce Management
Campaign Performance Analytics
Content Analysis
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Last updated: September 21, 2026
Folderly Email Deliverability Software logo
95 Folderly Reviews
4.9 out of 5
Small Business (50 or fewer emp.)
Jan 25, 2023
 Source
Overall Rating:
5.0
BP
Brandon P.
Ceo
Share
"500% improvement in email responses"
What do you like best about Folderly?

I was having issues with email deliverability, and my reply rates went all the way down to 5%. I used folderly and I got it up to 25%. Huge success!

What do you dislike about Folderly?

Nothing. Folderly has been amazing to work with and team is super helpful.

What problems is Folderly solving and how is that benefiting you?

They helped improve my email deliverability from 5% to 25%.

Small Business (50 or fewer emp.)
Nov 16, 2022
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Folderly really drives results"
What do you like best about Folderly?

Folderly really helped improve our email deliverability. If you are looking to avoid sending emails to other people's spam folders and improve your email reputation, this is the platform for you. Their account management team is also very accountable.

What do you dislike about Folderly?

There are still features that Folderly is working on. For example, including images as part of their spam fix product. I would like to see more and smarter features under their spam fix product.

What problems is Folderly solving and how is that benefiting you?

Email deliverability. After using Folderly's service, we never have to worry about this issue again.

Mid Market (51-1000 emp.)
Oct 24, 2022
 Source
Overall Rating:
5.0
Volodymyr K. avatar
Volodymyr K.
Head Of Acquisition
Share
"Booster for the email channel"
What do you like best about Folderly?

Since we use email as one of our primary acquisition channels, we heavily rely on its performance. Folderly and Dariia, our success manager, help to keep fine-tuned tech email infrastructure and always keep our engagement rates at the highest level.

What do you dislike about Folderly?

There're some product updates we're waiting for. But we are satisfied with everything.

What problems is Folderly solving and how is that benefiting you?

Folderly helps to keep our email channel predictable and profitable.

Small Business (50 or fewer emp.)
Jul 22, 2022
 Source
Overall Rating:
5.0
Sandra S. avatar
Sandra S.
Pr Director
Share
"Email infrusctructure pros"
What do you like best about Folderly?

Great software to get the email infrusctructure right. Initially, Oleksandra from the support team offered us a consultation where we sorted out all of our problems and the reasons for low deliverablity. Now the alert system notifies us about the upcoming issues, and Oleksandra helps to keep track of indicators.

What do you dislike about Folderly?

Nothing critical to mention; If there were problems, we solved them quickly.

What problems is Folderly solving and how is that benefiting you?

Folderly helps keep all our domains and mailboxes healthy. This ensures that both marketing and sales emails always reach the recipients inbox.

Small Business (50 or fewer emp.)
Jul 18, 2022
 Source
Overall Rating:
5.0
CC
Cagigas C.
Cto, Founder
Share
"The one and only way to send marketing emails to the Inbox"
What do you like best about Folderly?

I learned about Folderly from a colleague, before that I didn't even know it was possible to avoid sending marketing emails to promotions. Responsive support team delved into my case and helped me set up my email infrastructure so that I would not get to spam or promotions again. Now our open and click-through rates are twice as high.

What do you dislike about Folderly?

I would love to recieve folderly alerts as slack notifications

What problems is Folderly solving and how is that benefiting you?

High open and CR rates for marketing emails

Small Business (50 or fewer emp.)
Apr 29, 2022
 Source
Overall Rating:
5.0
EK
Elena K.
Product Marketing Manager
Share
"Kudos for email deliverability testing"
What do you like best about Folderly?

The clarity of usage. The actual rate of email landing folders and, what's important, the tool highlights your issues within different email sending systems. Also, it helped monitor DNS and blocklists.

What do you dislike about Folderly?

Unfortunately, the tool lacks email outreach ...

What problems is Folderly solving and how is that benefiting you?

With Folderly we are solving email delivery issues that our business has encountered. This tool gave me an understanding of the landing folders of my emails and an Inbox placement for different email sending systems. Now I know why some of my prospects didn't receive my emails.

Mid Market (51-1000 emp.)
Apr 28, 2022
 Source
Overall Rating:
5.0
Aleksandra K. avatar
Aleksandra K.
Public Relations Manager
Share
"Workable way to increase email engagement"
What do you like best about Folderly?

The tool saves time and efforts for our email marketers. It analyzes technical settings of our domain and mailboxes, consequently prevents emails from going to spam.

What do you dislike about Folderly?

No email verification feature. It would save time and money to combine those features in one tool.

What problems is Folderly solving and how is that benefiting you?

The primary goal is to fix delivery and open rates. At the same time to maintain domain health, and organize domain infrastructure.

Mid Market (51-1000 emp.)
Apr 20, 2022
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Not only a warmup, but a complex spam fix tool"
What do you like best about Folderly?

Folderly helped us distribute the volume of emails we send to domain and subdomains; resolved the technical issues, and provided efficient maintenance of deliverability. The good part are alerts, that give a notice in advance if smth goes wrong.

What do you dislike about Folderly?

Nothing, it's relevant for my business and we solved all the problems.

What problems is Folderly solving and how is that benefiting you?

Low open and reply rates for cold emails; spam/promotions tab placement, and low open rates for email marketing emails.

Small Business (50 or fewer emp.)
Mar 23, 2022
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Take care of your mailbox!"
What do you like best about Folderly?

"I am highly satisfied with my Folderly experience. I integrated this tool with my email service provider for outbound email campaigns. High delivery and open rates always got us to the needed number of leads, we exceeded expectations. Over a long enough period, we never had any problems with spam, although this is a frequent problem with cold emails. "

What do you dislike about Folderly?

Had some issues when adding new mailboxes.

What problems is Folderly solving and how is that benefiting you?

I used this tool for sales purposes and outbound mailings. Over a long enough period, I got a good understanding of the product, although I had my doubts in the beginning. It does it all for the efficiency of email outreach.

Small Business (50 or fewer emp.)
Feb 04, 2022
 Source
Overall Rating:
5.0
VM
Vitaliy M.
Ceo
Share
"Maintaining high open rates"
What do you like best about Folderly?

Easy to use and integrate with any existing email software. We use several providers, and integration was one of the deciding points.

What do you dislike about Folderly?

For now, I can't say anything. Nothing bothers me until I see results.

What problems is Folderly solving and how is that benefiting you?

The main benefit is the complex 'health' of our email ecosystem. Apart from Folderly solution, the customer support team shared several tips for the long-term delivery strategy. As for the tool, tests and warm-up run smoothly, and email campaigns perform extensively.

Mid Market (51-1000 emp.)
Jan 13, 2022
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Changed my attitude to cold emails"
What do you like best about Folderly?

Firstly, it's the performance of our email outreach. Never before we managed to get the reply rates so high. Secondly, it's the fox. Kudos to the designers! Last but not least, it's the team's involvement. They shared a lot of recommendations on top of our demands.

What do you dislike about Folderly?

There is nothing specific I can mention. I had a truly satisfactory experience.

What problems is Folderly solving and how is that benefiting you?

Once per year, we involve sales representatives to look for new partnerships. Folderly is the solution to reach all the prospects. We gather leads and send cold emails to the target recipients. We sent twice a few emails to get the needed number of partners with this platform. It's fast, easy, and efficient.

Small Business (50 or fewer emp.)
Dec 21, 2021
 Source
Overall Rating:
5.0
Oleg B. avatar
Oleg B.
Ceo&Founder
Share
"Truly rely on Folderly when sending sales emails"
What do you like best about Folderly?

Significant impact on the overall performance of email campaigns. This tool helps to ensure that all the efforts made on outreach are worths it.

What do you dislike about Folderly?

I would love to have more features in the app: list validation, html content preview etc., all in one place

What problems is Folderly solving and how is that benefiting you?

High email deliverability for popular or tricky email providers, like Outlook, Yahoo, Amazon. Proper setup for domain and DNS settings.

Small Business (50 or fewer emp.)
Dec 15, 2021
 Source
Overall Rating:
5.0
AI
Alex I.
H
Share
"60 pages audit"
What do you like best about Folderly?

High involvement in all-email-related problems; long-term strategy creation and recommendations. Folderly's team conducted an audit to determine and fix our domain's issues. Performance of our email campaigns was a bit lower than average on the market. After the audit, we restructured the domains, did authentication, managed senders and a number of emails to send from each sender. What's important, we have a strategy on how to grow the email channel correctly.

What do you dislike about Folderly?

Several hesitations about security as we needed to share sensitive information. However, it all went well, and I am satisfied with the results we got. Probably it is all possible to handle an audit internally, but it's too time consuming.

What problems is Folderly solving and how is that benefiting you?

Managing domain and IP problems, structuring the email marketing strategy.

Mid Market (51-1000 emp.)
Dec 14, 2021
 Source
Overall Rating:
5.0
Brian H. avatar
Brian H.
Sr. Sales Executive
Share
"The best way to ensure that my e-mails land in front of my prospects!!!"
What do you like best about Folderly?

I love that Folderly continues to maintain my domain health month after month to ensure that my e-mails always land in the recipient inbox versus "junk"!

What do you dislike about Folderly?

There isn't anything that I dislike! It's a very straightforward solution that provides insight along the way and is always working like a charm in the background!

What problems is Folderly solving and how is that benefiting you?

Before having Folderly my e-mails would get flagged as spam when doing cold outreach! I always struggled with having the right content and volume of sends per mailbox! Now I know exactly what to send and at what quantity will keep my sender score high and I've realized a much higher open rate and reply rate with literally ZERO bounce backs!

Mid Market (51-1000 emp.)
Dec 02, 2021
 Source
Overall Rating:
5.0
AM
Amanda M.
Business Development Executive
Share
"Wonderful experience with Folderly"
What do you like best about Folderly?

Easy to use platform, deliverability testing, and analytics! You get even more working closely with their customer success teaam

What do you dislike about Folderly?

it's a bit expensive, though totally worth it

What problems is Folderly solving and how is that benefiting you?

Getting out of spam, landing in inbox, so all our numbers go high

Mid Market (51-1000 emp.)
Nov 17, 2021
 Source
Overall Rating:
5.0
MB
Marc B.
Director Of Business Development
Share
"Game changers"
What do you like best about Folderly?

Essential tool for business scaling and outbound marketing. We send around 1k of cold emails per week from several mailboxes, which was enough to be suspicious for Google and other ESPs'. Folderly helped us treble the number of replies from cold emailing with the same amount of leads.

What do you dislike about Folderly?

3 months is the average domain recovery period; it's not a one-day story.

What problems is Folderly solving and how is that benefiting you?

I see a significant impact on our sales reps. Their motivation increased as they saw more outcomes from their job.

Small Business (50 or fewer emp.)
Nov 16, 2021
 Source
Overall Rating:
5.0
GM
Geoff M.
Head Of Marketing
Share
"Saved my domain health"
What do you like best about Folderly?

We were on the verge of destroying domain reputation of our business. As a marketer, I have a great chain of email automation for nurturing, engaging, and converting the audience. Suddenly, we started receiving emails from our clients that they don't receive our emails, or have them in spam. It was a huge issue for me. Folderly helped us wisely restructure the way how we send emails, including subdomains, volumes and content. Great client approach!

What do you dislike about Folderly?

They solved our issue and shared much more value than expected, so there is nothing to dislike.

What problems is Folderly solving and how is that benefiting you?

Sending marketing emails to the inbox. For the benefits, complex approach for the email channel.

Small Business (50 or fewer emp.)
Nov 16, 2021
 Source
Overall Rating:
5.0
VK
Vijay K.
Founder And Ceo
Share
"Became my friend :)"
What do you like best about Folderly?

Folderly accompanied my business for almost one year. This review is one of the multiple 'thank you' to the team. From the start, we connected more than 50 mailboxes and two different domains. The first month was quite a challenge: connecting any additional mailbox took us some time. I was coming back to the dashboard to see how analytics rocks. Of course, it never happens at a glance. This tool will not deceive you with promising numbers, but in the long-term, provides excellent results. Additionally, respect to the CEO, who spent some time on calls with me.

What do you dislike about Folderly?

There is nothing wrong I can say about Folderly.

What problems is Folderly solving and how is that benefiting you?

Good sender reputation for multiple domains and mailboxes.

Small Business (50 or fewer emp.)
Nov 15, 2021
 Source
Overall Rating:
5.0
PG
Pablo G.
Ceo & Co Founder
Share
"Open rate bootstrapped"
What do you like best about Folderly?

This tool helped me double open rates for my emails. I've appreciated a combination of automated warmup algorithms and recommendations on my email templates. As a result, I could not wish more from my email channel.

What do you dislike about Folderly?

It took me some time to compare with the other tools, as there are many of them. However, I had no doubts about Folderly's efficiency.

What problems is Folderly solving and how is that benefiting you?

It didn't take much time to see a dramatic drop in delivery and open rates since starting on outreach. Folderly is the tool that helps us to maintain high performance for cold emails.

Mid Market (51-1000 emp.)
Nov 10, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Great service at a very reasonable cost"
What do you like best about Folderly?

Folderly helped us improve our email deliverability with a series of simple yet very effective configuration recommendations. Additionally, their email engine helped warm up our email address against an extensive collection of mail servers. Combining that with speedy and friendly responsiveness led to a very smooth and enjoyable project.

What do you dislike about Folderly?

There wasn't anything to dislike. We are new to the nuances of email deliverability, but their hand-holding throughout the process gave us the confidence that everything will work out fine.

What problems is Folderly solving and how is that benefiting you?

We noticed that many of our outbound emails were going into spam boxes and wanted to find a way to fix that.

Small Business (50 or fewer emp.)
Nov 09, 2021
 Source
Overall Rating:
5.0
AG
Verified Reviewer
Founder
Share
"Got 75% open rate with Folderly, that`s something I could dream of!"
What do you like best about Folderly?

Easy to use tool, really intuitive, they have a great help center, kind and fast support and they deliver results!

What do you dislike about Folderly?

Set up took a while, but I immediately got help and great onboarding! I had to change my initial content per Folderly team request - but it gave great results!

What problems is Folderly solving and how is that benefiting you?

Get my emails out of the spam folder, and now it`s landing to the prospects inboxes, improved credibility to my domain, my sender score rocks right now!

Small Business (50 or fewer emp.)
Nov 09, 2021
 Source
Overall Rating:
5.0
AM
Ankur M.
Cto
Share
"Excellent product with unlimited warmup"
What do you like best about Folderly?

From the very first touchpoint, the tool is very attentive to details. To ai, they add customer support that manually checks your issues. There are constantly a lot of security updates, so if you have more than 1 mailbox and send more than 250 emails per week Folderly is the best choice.

What do you dislike about Folderly?

Their approach differs from most other tools, which offer just warming up service for almost free. I've tried several, and it never lived up to expectations. But it's your choice who to believe.

What problems is Folderly solving and how is that benefiting you?

Mailbox warmup

Small Business (50 or fewer emp.)
Nov 03, 2021
 Source
Overall Rating:
5.0
CB
Chad B.
Sales Representative
Share
"Efficient way to speed up email metrics"
What do you like best about Folderly?

Tips on how to send emails. Apart from warmup, they are very involved in the way how you behave as a sender.

What do you dislike about Folderly?

I recommend reaching customer support during onboarding. Otherwise, it can take time.

What problems is Folderly solving and how is that benefiting you?

The goal is to reach all the recepients we have in our contact lists

Small Business (50 or fewer emp.)
Nov 03, 2021
 Source
Overall Rating:
5.0
DS
Damani S.
Founder & Ceo
Share
"Truly rely on this software when sending emails"
What do you like best about Folderly?

I consider many points when finding a new tool, so I did great homework on comparing. Maybe someone will find it helpful. Almost all deliverability tools are divided into those that perform just email warmup and the others that do the complex analysis and maintenance. There was a lot of rumor around lemlist for $10, some users are genuinely in love, and some didn't see any performance. What I've learned is that you can not have a high sender score with just email warmup. Email service providers are very attentive now, and they react to any suspicious activity from the mailbox. So if you send more than 200 emails per day, your sender score is very fragile. The only way to have stable email performance is to track all the technical settings, apart from warming up. Folderly is exactly the tool that claims itself to be responsible for the whole health of my domain. Support team at Folderly is very attentive, so they take care of every issue I have or could have.

What do you dislike about Folderly?

In the beginning, I was confused because the app inside could seem a bit empty. I see a difference with other tools, as they lack various dashboards. However, they do really keep high scores on deliverability. My conclusion is that if you search for colorful stats with no fix, there is no point in going with Folderly. If you take your email performance seriously and need a real treat, they might be the best on the market.

What problems is Folderly solving and how is that benefiting you?

Various threats of spam filters. We have been multiple times in blocklists not knowing about it and blaming ourselves for bad leads and poor templates. Email is one of the primary channels for us, so Folderly helps us keep it working.

Small Business (50 or fewer emp.)
Nov 02, 2021
 Source
Overall Rating:
5.0
BW
Bryan W.
Coaching And Productivity Expert
Share
"New perspective on cold email campaigns: more results in less efforts"
What do you like best about Folderly?

Connected Folderly from a recommendation, and it's a new vision for sales departments. We send a smaller number of emails per week, meaning that we spend less time on lead research, validation, sequence creation, etc., and get more replies and more new customers. All of the emails land in the Inbox, so the reply rate is very high. Our sales team is highly motivated. We don't use Folderly's account very often, as soon as we see increased performance.

What do you dislike about Folderly?

Can't find one thing I dislike so far, all good

What problems is Folderly solving and how is that benefiting you?

Performance of cold emails

Small Business (50 or fewer emp.)
Nov 02, 2021
 Source
Overall Rating:
5.0
CS
Christian S.
Ceo, Partner
Share
"Good fix for email marketing maintenance"
What do you like best about Folderly?

Monthly we send over a few million marketing emails, and users often bounce, delete emails, or mark as spam. A tool like Folderly is a must for our business. We connected all the subdomains and senders who do email campaigns and weekly track deliverability performance. Monthly we sync up with Folderly customer success team to get an overview or tips on how we are doing. Considering the volumes we send, it turns to be costly. We stopped using Folderly for some time and saw a significant drop in engagement rates, so we have to come back using it sometime soon.

What do you dislike about Folderly?

It is confusing that we use different tools to track deliverability and email performance; Hubspot doesn't solve deliverability issues and never gives actual delivery rates, Folderly doesn't provide info on open and reply rates. So you usually have to check both. It would be nice to see Folderly as a email marketing software.

What problems is Folderly solving and how is that benefiting you?

Email marketing maintenance

Mid Market (51-1000 emp.)
Nov 02, 2021
 Source
Overall Rating:
5.0
KD
Kaitlin D.
Product Launch Manager
Share
"The only tool that could fix my spam issues"
What do you like best about Folderly?

I have tried several tools, all of them seem to be automated and perform non-stop warmup, but apart from colorful analytics in the dashboard, I didn't see any real improvements. Folderly was the only tool that went on the call right after I signed up, and they didn't promise results on the first day. They were patient to dive into my problem and explain how all the spam issues work. Actually, they offered to start a separate domain for cold emails, start the warn up gradually and increase the limits of emails due to the sending limits. That way is more prolonged than mostly promised on the Internet, AND I see that it's the only way that works.

What do you dislike about Folderly?

Thanks to the support team, they have spent quite a lot of time on calls with me. For what to dislike, it really takes time to gain domain reputation. I don't think that there is a magic pill that can help your reputation the same day.

What problems is Folderly solving and how is that benefiting you?

With Folderly I take care of my domain reputation, especially the brand domain. We send millions of emails, and it is vital to be seen as a trustful sender, not just another spammer.

Mid Market (51-1000 emp.)
Nov 02, 2021
 Source
Overall Rating:
5.0
DB
Dwayne B.
Vice President, Sales
Share
"Education and fix. Complete tool to get to customers' Inbox"
What do you like best about Folderly?

At the very beginning, I had an intention only to test the tool. Sing up and forget, let's say. I failed in it and am very grateful for that. Folderly 'takes' your hand and leads to the world of deliverability. Apart from all the DNS fix and warmup, they give practices on creating subdomains, sender behavior, limits, content (shame on me, I was sending caldendly links in cold emails). As I realized later, I had quite a specific issue with DKIM policy that prevented me from being in the Inbox. These guys helped me a lot, and we managed to schedule too many appointments to handle, so for some time paused cold outreach.

What do you dislike about Folderly?

The tool works well, and it exceeds expectations

What problems is Folderly solving and how is that benefiting you?

We are solving email deliverability issues. For the benefits - the amount of leads we could get from cold outreach, thanks to good deliverability and open rates.

Small Business (50 or fewer emp.)
Oct 29, 2021
 Source
Overall Rating:
5.0
JH
Justin H.
Director Of Client Services
Share
"Folderly is the best"
What do you like best about Folderly?

I get to know the team personally, and they are the pros' in increasing email deliverability and fixing spam issues.

What do you dislike about Folderly?

So far, I have nothing to dislike with Folderly.

What problems is Folderly solving and how is that benefiting you?

High email deliverability maintenance

Small Business (50 or fewer emp.)
Oct 29, 2021
 Source
Overall Rating:
5.0
LM
Laura M.
C
Share
"Domain health care"
What do you like best about Folderly?

I love the domain health part, where I get insights on everything about my domain: spam filters, DNS settings, timeliness. It's also valuable that I can generate all the records right inside the platform.

What do you dislike about Folderly?

The price is higher than the average on the market.

What problems is Folderly solving and how is that benefiting you?

We use a few domains and several subdomains for sending emails. Folderly helps us keep a 'healthy' sender score for each mailbox.