Folderly vs Mailgun Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated May 2026 8 min read

Folderly

0.0 (0 reviews)

Folderly is an all-in-one email deliverability platform that helps you reach the inbox by identifying and fixing technical issues, monitoring blacklists, and improving your overall sender reputation.

Starting at $160/mo
Free Trial NO FREE TRIAL
VS

Mailgun

0.0 (0 reviews)

Mailgun is an email delivery service providing developers with a powerful API to send, receive, and track transactional and marketing emails with high deliverability and real-time analytics.

Starting at Free
Free Trial 30 days

Quick Comparison

Feature Folderly Mailgun
Website folderly.com mailgun.com
Pricing Model Subscription Subscription
Starting Price $160/month Free
FREE Trial ✘ No free trial ✓ 30 days free trial
Free Plan ✘ No free plan ✘ No free plan
Product Demo ✓ Request demo here ✓ Request demo here
Deployment saas cloud
Integrations Gmail Outlook SendGrid Mailgun Amazon SES HubSpot Salesforce Pipedrive Apollo.io Woodpecker WordPress Salesforce Zapier Slack Magento Shopify Google Cloud AWS Heroku Make
Target Users small-business mid-market enterprise small-business mid-market enterprise
Target Industries
Customer Count 0 0
Founded Year 2019 2010
Headquarters Miami, USA San Antonio, USA

Overview

F

Folderly

Folderly is a specialized email deliverability platform designed to ensure your business emails actually reach your customers' inboxes. If you struggle with high bounce rates or find your messages landing in spam folders, this tool provides the technical infrastructure and monitoring needed to solve those problems. You can connect your existing email service provider and instantly begin diagnosing issues with your SPF, DKIM, and DMARC settings.

The platform works by creating a network of interactions that simulate human behavior, which helps warm up your domain and build trust with major mailbox providers like Google and Microsoft. You get real-time insights into your sender score and proactive alerts if your domain ends up on a blacklist. It is particularly effective for sales teams and marketing agencies who rely on cold outreach and need to maintain a high deliverability rate to protect their ROI.

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Mailgun

Mailgun is a cloud-based email delivery service designed to help you send, receive, and track emails effortlessly through a robust API or SMTP integration. Whether you are sending password resets, shipping notifications, or marketing newsletters, you can rely on its infrastructure to handle high volumes while maintaining excellent inbox placement. You can also use its powerful inbound routing to process incoming emails and turn them into structured data for your applications.

The platform focuses on technical reliability and provides you with detailed logs and analytics to troubleshoot delivery issues in real-time. You can verify email addresses before sending to reduce bounce rates and protect your sender reputation. It scales perfectly from small projects to enterprise-level applications, offering a flexible pay-as-you-go model alongside dedicated plans for high-volume senders.

Overview

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Folderly Features

  • Email Warmup Build a positive sender reputation automatically by generating human-like interactions with your emails across a global network.
  • Deliverability Dashboard Track your inbox placement in real-time across different providers so you know exactly where your messages are landing.
  • DNS Settings Audit Identify and fix errors in your SPF, DKIM, and DMARC records to ensure your domain is properly authenticated.
  • Blacklist Monitoring Get instant notifications if your domain or IP address is flagged by major blacklists so you can take immediate action.
  • Spam Trigger Analysis Scan your email content for words and formatting that trigger spam filters before you hit the send button.
  • Template Optimization Test different versions of your email copy to see which ones perform best and avoid technical delivery traps.
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Mailgun Features

  • Email Sending API. Integrate email sending into your app quickly using popular languages like Python, PHP, and Java via RESTful API.
  • Inbound Routing. Automatically parse incoming emails and transform them into JSON data so your application can process replies easily.
  • Email Validation. Clean your mailing lists in real-time to remove invalid addresses and significantly reduce your bounce rates.
  • Deliverability Tools. Optimize your inbox placement with dedicated IP addresses and automated SPF/DKIM/DMARC setup assistance.
  • Real-time Analytics. Monitor your performance with detailed logs that show exactly when emails are delivered, opened, or clicked.
  • Send Time Optimization. Use machine learning to deliver messages at the exact moment your recipients are most likely to engage.

Pricing Comparison

F

Folderly Pricing

Cold Outreach
$160
  • 1 Mailbox included
  • Automated email warmup
  • DNS settings monitoring
  • Blacklist monitoring
  • Deliverability analytics
  • Spam folder protection
M

Mailgun Pricing

Trial
$0
  • 5,000 free emails per month
  • 5 days of log retention
  • SMTP relay and RESTful API
  • Webhooks for tracking
  • Basic email analytics

Pros & Cons

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Folderly

Pros

  • Significantly reduces the time needed to warm up new domains
  • Intuitive dashboard makes complex technical DNS issues easy to understand
  • Provides clear, actionable steps to remove domains from blacklists
  • Works seamlessly with major providers like Gmail and Outlook

Cons

  • Entry-level pricing is higher than some basic warmup tools
  • Requires a consistent subscription to maintain long-term results
  • Initial technical setup can be daunting for non-technical users
A

Mailgun

Pros

  • Excellent documentation makes API integration straightforward for developers
  • High deliverability rates for transactional and marketing emails
  • Detailed real-time logs simplify troubleshooting delivery issues
  • Powerful inbound email parsing capabilities for apps
  • Reliable performance even during high-volume sending spikes

Cons

  • Technical interface can be intimidating for non-developers
  • Customer support response times vary on lower tiers
  • Pricing can become expensive as sending volume increases
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