Software Alternatives, Accelerators & Startups

Folderly VS Emisar.dev

Compare Folderly VS Emisar.dev and see what are their differences

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Folderly logo Folderly

Folderly is an all-in-one email deliverability platform to supercharge your email performance. Locate, solve, prevent email deliverability pitfalls, and ensure that your emails reach the Inbox folder.

Emisar.dev logo Emisar.dev

One governed MCP server connects any AI agent to a finite action catalog, enforced on-host with pack trust, policy gates, human approvals, and a hash-chained audit trail.
  • Folderly Landing page
    Landing page //
    2023-09-11

Folderly is more than just an email deliverability tool.

Deep email deliverability fixes, technical setup, access to an up-to-date deliverability score, user-friendly template management, team accounts, and, now, spam trigger detection with best practices to followโ€”all of these features assist you in reaching and maintaining 99.9% email deliverability.

Locate, solve, and prevent email deliverability pitfalls, and ensure your emails reach the Inbox folder. Never again let your emails be part of the 51% of all business emails that never reach the inbox. Make every email count, bringing in revenue and business opportunities.

How will you use Folderly?

  • Reach the recipients' Inbox. Folderlyโ€™s advanced algorithms analyze your outbound email campaigns and identify issues that cause your emails to be filtered out of recipients' inboxes.

  • Increase delivery, reply, and conversion rates. We will identify the most pressing issues by analyzing your entire email ecosystem and suggest the simplest ways to address them.

  • Skyrocket revenue from email outreach. By delivering 100% of your emails, you can significantly boost your sender score, generate more leads, and ultimately increase your email channel's ROI.

  • Emisar.dev Approvals
    Approvals //
    2026-07-21
  • Emisar.dev Audit Log
    Audit Log //
    2026-07-21
  • Emisar.dev Policies
    Policies //
    2026-07-21
  • Emisar.dev Runner fleet
    Runner fleet //
    2026-07-21

Emisar is the last MCP server youโ€™ll need to install: a Zero-Trust gateway connecting Claude, Cursor, ChatGPT, and any AI agent to your infrastructure. One server handles production access, debugging, alerts, and internal operations, with new capabilities added as packs. Agents can inspect real production state, debug what they shipped, and help resolve incidents. Safe reads run automatically; policy allows, blocks, or routes risky actions for approval. No SSH keys, VPNs, remote shells, or standing shell access โ€” and every call is recorded.

Folderly

$ Details
paid Free Trial $120.0 / Monthly (Folderly Premium)
Platforms
Google Workspace Office 365 Outlook Yahoo Zoho AWS Sendgrid SendinBlue Mailgun Sendpulse Intercom Klaviyo Sparkpost SMTP API Marketo Elastic Email Rackspace Technology

Emisar.dev

Website
emisar.dev
$ Details
freemium $20.0 / Monthly (per runner)
Platforms
-
Startup details
Country
United States
State
CA
Founder(s)
Andrew Dryga
Employees
1 - 9

Folderly features and specs

  • Spam Fixing
  • Email Deliverability Testing
  • Email Placement Dashboard with Analytics
  • Technical Setup of Domain DNS and Authentication
  • Active Domain and IP Monitoringย 
  • Content Analysis and Recommendations
  • Email Templates Management
  • Spam Triggers
  • Best Practices
  • Dynamic Seed Rotation
  • Custom API Integration
  • Dedicated Customer Success Manager
  • Onboarding Support

Emisar.dev features and specs

No features have been listed yet.

Analysis of Folderly

Overall verdict

  • Overall, Folderly is a beneficial tool for businesses that rely heavily on email marketing and need to ensure their communications reach their audience's inbox. Its specialized focus on improving email deliverability and providing actionable insights makes it a valuable asset for enhancing email campaign performance.

Why this product is good

  • Folderly is often regarded as a good tool because it provides efficient email deliverability solutions. It helps businesses improve their email performance by reducing emails going to spam and enhancing inbox placement. This is achieved through features like email warm-up, domain and IP reputation management, and detailed deliverability analytics. Its user-friendly interface and comprehensive reporting tools make it accessible for businesses looking to maximize the efficiency of their email campaigns.

Recommended for

    Folderly is recommended for marketers, email campaign managers, and businesses that heavily depend on email as a primary communication tool, especially those who experience issues with emails being marked as spam. It is also suitable for businesses looking to optimize their outreach efforts and improve overall email deliverability rates.

Folderly videos

Supercharge Your Email Deliverability With Folderly

More videos:

  • Review - From 15 to 98% Email Deliverability Rate for Slash | Folderly
  • Review - New Clients for BeforeHello after Working with Folderly
  • Review - Delivering Messages to the Inbox for the Kannaco Company | Folderly
  • Review - Getting stories delivered to the Inbox for PR & Communications company | Folderly

Emisar.dev videos

No Emisar.dev videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Folderly and Emisar.dev)
Email Marketing
100 100%
0% 0
AI Tools
0 0%
100% 100
Email Deliverability
100 100%
0% 0
Infrastructure Monitoring

Questions & Answers

As answered by people managing Folderly and Emisar.dev.

How would you describe the primary audience of your product?

Emisar.dev's answer:

emisar is for SRE, DevOps, platform engineering, infrastructure, and security teams that want AI agents to inspect and operate production systems. It is especially relevant to teams managing multiple Linux hosts, clusters, databases, cloud services, or regulated environments where unrestricted shell access and incomplete audit records are unacceptable.

Which are the primary technologies used for building your product?

Emisar.dev's answer:

The hosted control plane and operator interface use Elixir, Phoenix, LiveView, PostgreSQL, and Tailwind CSS. The host runner and MCP bridge are written in Go. Action packs use YAML and JSON Schema, while production infrastructure is managed with Terraform on Google Cloud. The system communicates through MCP, OAuth 2.1, TLS, and WebSockets.

Who are some of the biggest customers of your product?

Emisar.dev's answer:

  • Blitz.gg - game analytics for billions of matches and a pretty large infrastructure.

What's the story behind your product?

Emisar.dev's answer:

Founder Andrii Dryga spent a decade working as a CTO, full-stack engineer, SRE, and DevOps engineer. He experienced the cost of running the wrong command on the wrong cluster, while also seeing AI solve operational problems in seconds. emisar grew from the need to preserve both truths: AI agents are useful, and production access must remain bounded. Its answer is to give agents a reviewed catalog of operations instead of a blank terminal.

What makes your product unique?

Emisar.dev's answer:

emisar lets AI agents work on real infrastructure without giving them a shell. Agents choose from a finite catalog of typed, versioned actions. Policy decides what runs, what requires approval, and what is denied, while an outbound-only runner verifies the action again on the host. New capabilities arrive as packs behind the same MCP integration, and every request is recorded in both a searchable audit trail and a tamper-evident host journal. [

Why should a person choose your product over its competitors?

Emisar.dev's answer:

Choose emisar when you want an agent to keep investigating and handling routine operations without handing it SSH credentials or supervising every call. Compared with raw shell access, copy-paste workflows, or one-off MCP servers, emisar provides reviewed action contracts, host-level enforcement, risk-based policy, scoped access, approvals, pack integrity checks, and a durable audit trail. It is built specifically for governed infrastructure access rather than generic automation.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Folderly and Emisar.dev

Folderly Reviews

  1. Valeria R.
    ยท Communications Manager at SOLV. ยท
    Folderly guarantees that our emails are delivered to the inbox

    Our field of work requires extensive communication via email; therefore, we needed a solution that would monitor our email deliverability rate and help us eliminate any possible issues causing our emails to land in spam, if they arise. Folderly performs its job well and protects our email reputation. The team has helped us fine-tune our email infrastructure, and is overall very responsive - they always answer our questions in a timely and detailed manner.

  2. Kate Kos
    ยท Partner Relations Manager at SaveMyLeads ยท
    Folderly saves our emails from spam

    With Folderly, we have a clear picture of the situation with our mailboxes, understand what exactly caused our emails to go to spam, and see our campaigns' performance getting better. The team is always ready to give us a helping hand and explain what we need to do next.

    ๐Ÿ‘ Pros:    Deliverability insights, spam issues fix, easy-to-use interface, responsive team
  3. Stacy
    ยท Marketing Specialist ยท
    Folderly team always goes extra mile

    We thought our email campaign is doing good, but Folderly team boosted results to super cool! They are always there to help and give insightful advice. If you have troubles with spam and want to improve your email deliverability, Folderly would be your best choice ;-)

    ๐Ÿ‘ Pros:    Super simple in use|All in one

Top 14 Email Warm-Up Tools for B2B SaaS
Folderly: Full deliverability service offering warm-up, remediation, audits, configuration help, and a managed roadmap for recovery from spam placement.
23 Best Cold Email WarmUp Tools in 2022 (Free + Paid)
The company is one of Belkinsโ€™s spin-off, a B2B Lead Generation Agency with a solid track record, created in 2015.Folderly presents itself as an AI-powered platform for increasing your email deliverability.
Source: inguide.in
Top 10 of the Best Email Warm Up tools in 2022
To warm up your email with Folderly, you will need to connect your domain and email address. The tool will then ask you to create a warm up email template and to run a spam test to examine your inbox and identify its deliverability issues. The warm up campaign will finally begin and your email address will interact with Folderly inboxes and paid senders. Not only do they...
Source: mailmeteor.com
7 Best Cold Email Warm-up Software
Folderly is an AI-based Platform to increase your mail open rate, click rate, deliverability, reply rate. Folderly goal is to help marketers accelerate their sales by helping them send emails that drive revenue. Folderly is trusted by Berkely, Titan Growth, born & bred, pillbox, Greater Rochester.

Emisar.dev Reviews

We have no reviews of Emisar.dev yet.
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Social recommendations and mentions

Based on our record, Folderly seems to be more popular. It has been mentiond 60 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Folderly mentions (60)

  • Breaking Into Legal Tech
    Make โ€ข Build and automate workflows InvoiceBerry โ€ข Online invoicing for small businesses Gusto โ€ข Payroll, benefits and HR management Hive โ€ข Manage tasks, workflows and teamโ€™s work Lanva โ€ข Social video editing app. ClickUp โ€ข Manage tasks, docs, chat, goals and more Plausible โ€ข Open-source privacy-friendly web analytics Podcast Hawk โ€ข Podcast guest booking software. Writesonic โ€ข AI-driven content... Source: over 3 years ago
  • Why do businesses always have such long voice mail greetings?
    BTW, the same thing I noticed with emails. I recently started to work with them, and differentiating emails and sending them to the right group of people brings a more positive outcome. We recently checked it on https://folderly.com/. So, I think those things can be linked to each other. Source: almost 4 years ago
  • Is there somewhere an email client for mac that is not gmail, implements labels and supports IMAP?
    Finally, I would suggest you also use https://folderly.com/ in addition to those two email clients. I would help you avoid making your emails spammy and maintain a high email deliverability score. Itโ€™s essential if youโ€™re using email for business purposes. Source: almost 4 years ago
  • What email client are you using?
    Besides, I recently noticed that Apple mail didnโ€™t send my emails. I thought my clients didnโ€™t receive my emails because they were in the spam folder. But, I checked my email deliverability on https://folderly.com/, and it was OK. So, Iโ€™ve been looking at what makes my clients not get my emails and discovered that this email client doesnโ€™t send them for some reason. Source: almost 4 years ago
  • How to promote a sale event via email that won't look spammy?
    But, after testing my email campaign on my friends, I was left puzzled why my letters went to spam. I've read somewhere that you can run all your emails before launching the marketing campaign on https://folderly.com/. I did it, and my score wasn't the best, nor too low. I thought the reason might be in the attached PDF file and links to my store. Do you think that it might be the case? If yes, what are the... Source: almost 4 years ago
View more

Emisar.dev mentions (0)

We have not tracked any mentions of Emisar.dev yet. Tracking of Emisar.dev recommendations started around Jul 2026.

What are some alternatives?

When comparing Folderly and Emisar.dev, you can also consider the following products

Loops.so - We bought a billboard in Times Square and we're letting you advertise your startup on it!It's free.

Mailwarm - Email warmup tool to avoid spam folder, since 2020 - Backed by Email Deliverability Experts

Warmy.io - We don't send emails. We get them seen.

Warmup Inbox - Warmup Inbox is a tool that automates the process of warming up your email inboxes, raising your sender reputation and inbox health automatically.

MailReach.co - The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

Warmbox.ai - Warm up your cold email inbox, and never land in spam anymore!