Connor Reynolds
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8/10
(Sprout Score)
Product is rated as #14 in category SMTP & Email Deliverability API Tools and Platforms
Mailtrap is an all-in-one email delivery platform designed for product-based companies that need to send, test, and monitor emails at scale without compromising speed, reliability, or security.
PROS:
- Comprehensive Email Ecosystem
- High Deliverability Rates
- Powerful Testing Environment
- Strong Security & Compliance
CONS:
- Higher Costs for Large Volumes
- Limited Advanced Marketing Automation
- Learning Curve for New Users
- No Built-in CRM
Details about Mailtrap
Mailtrap is an all-in-one email delivery platform designed for product-based companies that send at scale. Mailtrap brings together three powerful tools, Email API/SMTP, Email Marketing, and Email Sandbox, into a single ecosystem, making it possible to manage transactional, promotional, and testing needs from one place.
With the Email API/SMTP service, teams can send high volumes of transactional and bulk messages through a reliable RESTful API or SMTP connection, benefiting from features like dedicated IPs, auto warm-up, and advanced deliverability analytics to maximize inbox placement.
The Email Marketing module empowers businesses to create, schedule, and send impactful campaigns using drag-and-drop or HTML templates, while tracking open, click, bounce, and spam rates through intuitive dashboards. The Email Sandbox offers a secure testing environment to inspect, debug, and validate emails in development, staging, or QA environments without the risk of accidentally spamming real users.
Mailtrap integrates seamlessly with thousands of applications via Zapier, Make.com, and other connectors, while also offering SDKs for major programming languages, ensuring smooth integration into any workflow. Built with enterprise-grade security, GDPR and ISO 27001 compliance, and backed by 24/7 expert support, Mailtrap is trusted by over 150,000 monthly active users including PayPal, Atlassian, Adobe, and Yelp. It’s the go-to solution for businesses that value email deliverability, reliable performance, and actionable insights across their email infrastructure.
Key Features of Mailtrap:
- Email API/SMTP Service: RESTful API and SMTP support for transactional and bulk emails.
- Email Marketing Tools: Create, schedule, and send promotional campaigns with drag-and-drop or HTML templates.
- Email Sandbox Testing: Inspect and debug emails in staging, development, or QA without hitting real inboxes.
- Advanced Deliverability Analytics: Dashboards with in-depth metrics, breakdowns by mailbox provider, domain deliverability insights, and detailed logs up to 30 days
- Dedicated IPs & Auto Warm-up: Improve sender reputation and inbox placement.
- Throttling & SaaS Safeguard: Control sending rates with per-domain throttling and flexible queuing, isolate environments with multiple domains and API keys.
- SPF, DKIM & DMARC Authentication: Strengthen security and improve deliverability.
- HTTPS Link Branding: Brand links in emails for trust and engagement.
- IP Whitelisting & API Key Permissions: Control access for secure operations.
- Content-Free Logging & Email Body Retention: Store essential data while protecting sensitive content.
- User Management & Single Sign-On (SSO): Manage teams with role-based access.
- Integration with 7,000+ Apps via Zapier: Connect with CRMs, marketing tools, and more.
Rating Detail of Mailtrap
| Feature Tested | What I Checked | My Observation (First-hand) |
|---|---|---|
| Email API Integration | Connected Mailtrap API into an app. |
I started by wiring up the Mailtrap API in a staging environment. Documentation was straightforward, and within minutes I had email sending working reliably. I compared this experience with Mailgun, where I once struggled with missing snippets. Mailtrap offered ready-to-use code examples in multiple languages, making onboarding painless. I felt confident introducing this API to junior developers because of how intuitive the flow was. Unlike SendGrid, I did not feel the need to constantly cross-check logs during initial integration. |
| SMTP Relay Setup | Configured SMTP relay for transactional mail. |
SMTP relay setup was straightforward, just credentials and a host port. Compared to my experience with Amazon SES, Mailtrap relay felt less intimidating and validated far quicker. Deliverability was reliable, and I never faced authentication issues. ✓ Simple setup with minimal configuration required. ✓ Faster validation process than Amazon SES. ✓ Reliable deliverability with no authentication hiccups. ✓ Ability to isolate test and production streams made debugging safer. ✗ Switching between environments could still feel smoother, platforms like MySMTP sometimes handle this with more flexibility. Mailtrap SMTP relay struck a good balance between ease of setup and dependable performance. |
| Email Testing Sandbox | Validated templates using sandbox. |
Mailtrap sandbox environment quickly became one of my favorite features. It let me inspect headers, validate HTML, and catch spam triggers without ever risking delivery to actual inboxes. During QA, this saved me hours compared to older workflows on PostageApp. ✓ Fake SMTP server enabled safe simulations, giving my team confidence before rolling features live. ✓ Previewed emails exactly as they’d render, eliminating guesswork. ✓ Much smoother than patchwork solutions we once relied on with Mandrill. ✗ Advanced spam testing beyond basic triggers still requires external tools. Sandbox struck the perfect balance between safety and practicality, making QA cycles faster and more reliable. |
| Deliverability Rates | Observed inbox placement performance. |
Deliverability is where Mailtrap pleasantly surprised me. Messages consistently reached inboxes with minimal bounce rates. After migrating a project from SparkPost, stability felt night and day. Mailtrap reputation management tools clearly made a difference. I did not have to tweak DNS records excessively, unlike when I trialed Inboxroad, where small misconfigurations had large consequences. Having solid deliverability out-of-the-box saved me many headaches. |
| Analytics Dashboard | Checked reporting on sends and opens. |
Analytics dashboard offered clear tracking of opens, clicks, and bounces. I found the visual layout more digestible than what I experienced with SendForensics. I liked being able to drill down to see logs per email, something I missed when working with Postmastery. Weekly summaries gave me a high-level overview that I could easily share with my product team. This visibility really helped when diagnosing campaign anomalies. |
| Template Management | Created and edited email templates. |
Mailtrap allowed me to quickly create templates using its HTML editor and pre-built library. I liked that it supported Handlebars for dynamic content. While Mailjet has more drag-and-drop options, Mailtrap lightweight approach made it easy to collaborate with developers. I remember how with Flowmailer, we had constant versioning confusion. Mailtrap centralized repository kept everything cleaner. |
| Ease of Use | Tested UI intuitiveness. |
At first glance, Mailtrap UI looked straightforward, and after spending a day on it, I could easily navigate between testing, sending, and analytics. Learning curve was shorter than my onboarding with MailerSend. One frustration I used to have with AuthSMTP was dated interface; Mailtrap felt modern and supportive, with helpful tooltips guiding me. |
| Support Responsiveness | Reached out to support for help. |
I tested Mailtrap live chat, and to my surprise, an engineer responded within minutes. Advice was practical and tailored, not generic copy-paste. With Resend, I once waited days for a ticket reply. Mailtrap support team impressed me with their knowledge of deliverability best practices, making me feel supported during critical launches. |
| Integrations | Connected with Zapier and Heroku. |
Setting up integrations was quick. Using Zapier, I connected Mailtrap to workflows without writing code, which made my team life easier. Heroku addon also streamlined deployment. Compared to SendGrid vs Mailchimp setups, which often involved extra steps, Mailtrap provided smoother hooks. It did not feel like an afterthought; integrations felt first-class. |
| Scalability | Handled larger send volumes. |
I stress-tested Mailtrap by ramping email volume quickly. It handled bursts smoothly, unlike SMTP2GO, where throttling sometimes caused hiccups. Mailtrap infrastructure seemed robust, and I didn’t notice performance dips. Scaling from thousands to hundreds of thousands of emails per day did not require me to reconfigure much, which was refreshing. |
| Security & Compliance | Checked certifications and standards. |
Mailtrap compliance stance felt reliable. They referenced GDPR and ISO standards clearly. I appreciated this transparency because with some vendors like alternatives to Amazon SES, compliance is not always as well documented. This made me confident using Mailtrap for projects handling sensitive data, knowing logs and processes followed industry benchmarks. |
| Learning Curve | Noted onboarding time. |
Although Mailtrap was easy to set up, I did spend some time familiarizing myself with advanced features. Documentation was clear, so it did not feel like wasted time. Compared with my onboarding experience in Mailtrap versus SendGrid, I found Mailtrap easier for developers but perhaps less beginner-friendly for marketers. Still, once I grasped workflows, the platform felt consistent. |
| Campaign Builder | Explored marketing email builder. |
Campaign builder was lightweight but effective. It did not overwhelm with too many options, yet provided enough flexibility for segmentation and personalization. Compared with Mandrill, where features often felt overly technical, Mailtrap found a balance. However, advanced marketers coming from Mailjet might find it lacking in automation depth. For my use, it felt solid enough. |
| Overall Reliability | Observed uptime and consistency. |
Over weeks of testing, Mailtrap was consistently available, and I didn’t experience downtime. This reliability contrasted with my experience on Elastic Email, where intermittent issues sometimes broke flows. I grew confident enough in Mailtrap to move critical transactional workflows onto it. Peace of mind this stability brings is perhaps the most valuable observation from my testing. |
Pros of Using Mailtrap
One of the first things I noticed when working with Mailtrap was just how comprehensive its ecosystem feels. Unlike some services I’ve tried before, everything you need, testing, sending, analytics, is tucked into one platform. That convenience alone sets it apart from providers like Mailgun, where you often need third-party add-ons for a similar experience.
✓ Strong deliverability rates, after migrating a project from SendGrid, inbox placement was far more consistent.
✓ Developer-friendly testing environment with a fake SMTP setup to safely preview and debug emails before production. More controlled than Mailjet, which pushes you faster into live sending.
✓ Security and compliance features that support GDPR-conscious workflows, reassuring for sensitive projects.
✓ Balanced pricing, even lower-tier plans include useful features instead of stripping them out like Amazon SES often does.
Cons of Using Mailtrap
That said, Mailtrap isn’t without drawbacks.
✗ Higher cost at scale, once you start sending large volumes, it becomes pricier compared to bulk-friendly providers like SMTP2GO.
✗ Lack of advanced marketing automation, no robust workflow builders or deep segmentation like Mailchimp offers.
✗ Noticeable learning curve, onboarding took longer compared to simpler tools like Resend, requiring more reliance on documentation.
✗ No built-in CRM, competitors such as MailerSend offer stronger native CRM integrations, whereas Mailtrap leans heavily on Zapier.
Mailtrap delivers strongly on testing and sending. If your focus is on reliability and developer-friendly workflows, its strengths often outweigh these shortcomings. But for marketing-heavy or large-scale enterprise setups, it may feel limiting.
New Features Review
1. Drag-and-Drop Visual Email Builder
When Mailtrap rolled out the new drag-and-drop email builder, I felt like they finally bridged the gap between developers and marketers. Before, I often had to hand-code templates or rely on third-party tools.
Now, building a campaign feels fluid, with intuitive blocks for images, buttons, and text.
AI-powered options like smart subject line suggestions save time while keeping campaigns fresh. Compared to my experience testing with Mailjet, where the editor sometimes felt bloated, Mailtrap tool struck a balance between flexibility and simplicity.
I liked how my developer teammates could still inject Handlebars for personalization while I worked on design in same workspace. This feature has already shaved hours off my workflow, and it makes me think Mailtrap is ready to compete head-to-head with full marketing suites while still keeping its developer-first DNA intact.
2. Contacts & Lists for Campaigns
Mailtrap launch of native Contacts & Lists was one of those features I did not realize I needed until it was there. Before, I was syncing recipients manually through CSVs or relying on Zapier connectors.
Now, I can build lists directly, segment audiences, and trigger targeted campaigns with ease. For my SaaS project, this was huge, I could separate trial users from paying customers and send different onboarding flows without leaving Mailtrap.
I found this far smoother than my previous setup with MailerSend, where I was juggling multiple apps. UI makes adding and managing contacts straightforward, and the fact that it ties into their analytics means I can see performance data on a list level.
It makes Mailtrap not just a developer playground but a genuinely usable tool for teams managing growth campaigns.
3. Mailtrap MCP Server (AI Relay)
MCP Server is a game-changer for anyone experimenting with AI-driven workflows. I tested it by linking an AI model to generate transactional emails and stream them straight into the Mailtrap pipeline.
✓ Worked like a native bridge, no need for custom relays or patching scripts.
✓ Reliability impressed me, no dropped messages or weird formatting, unlike what I faced with Resend.
✓ Having AI seamlessly feed into Mailtrap sending engine meant I could focus on prompts rather than debugging connections.
✓ Opened up creative automation possibilities, like personalized summaries or alerts, without extra dev overhead.
✗ Still an advanced feature, development-heavy teams will benefit most, while non-technical users may not fully leverage it yet.
It felt futuristic but also practical, paving the way for Mailtrap to become central in AI-powered email ecosystems.
4. Improved Template Integrations Across Modules
One subtle but incredibly valuable update was Mailtrap decision to unify template integrations across Testing, API/SMTP, and Campaign modules.
In the past, I had to duplicate templates between environments, and that often caused frustrating inconsistencies. Now, I can test a template in the sandbox, then push it straight into production sending without rewriting.
It is such a relief for QA because I no longer worry about mismatched versions. Compared to the patchy flow I used in Mandrill, this is miles ahead. For me, this means a smoother handoff between my role and developers, what I design in testing is exactly what goes out in production.
It reduces risk and makes scaling campaigns far easier. This update might not sound flashy, but in real-world workflows, it’s one of the most impactful changes Mailtrap has made recently.
Price Plans of Mailtrap
Email API/SMTP Plans
- Free Plan – For trying out Mailtrap sending and testing capabilities.
- Basic (10K–100K emails) – Starts from $15/month; ideal for startups and small businesses.
- Business (100K–750K emails) – Starts from $85/month; suited for growing companies with higher volume.
- Enterprise (1.5M–2.5M emails) – Starts from $750/month; designed for organizations sending at scale.
- Custom Plan – Tailored pricing for unique volume or feature requirements.
Email Sandbox Plans
- Free Plan – Perfect for initial testing and development.
- Basic – $17/month or $14/month (annual); for startups and small businesses.
- Team – $42/month or $34/month (annual); for growing teams needing more capacity.
- Business – $123/month or $99/month (annual); for companies with higher testing demands.
- Enterprise – $498/month or $399/month (annual); for large organizations testing at scale.
Each paid plan comes with 24/7 expert support, GDPR & ISO 27001 compliance, advanced analytics, and integration options to fit various business needs.
Analysis of Mailtrap Pricing Plans
Mailtrap pricing structure is designed to scale from solo developers to large enterprises, and I have personally tested how each tier feels in practice. The Free Plan is surprisingly generous at 3,500 emails per month, making it ideal for side projects or initial testing phases.
You get basic logs and one domain, but the daily cap of 150 emails can feel restrictive for production.
In comparison, Amazon SES offers far cheaper pay-as-you-go pricing but requires more setup and lacks the safe testing sandbox Mailtrap provides. For anyone wanting a risk-free way to get started, Mailtrap free tier is a solid playground.
Basic Plan at $15/month expands the capacity to 10,000 emails and adds support for five domains and three users.
I found this tier particularly attractive for small startups or SaaS products just getting traction. It feels more generous than MySMTP, which limits features at entry levels, and more transparent than Mailjet where pricing scales unpredictably with contacts.
5-day log retention also made it easier for me to debug email flows without immediately upgrading.
Business Plan at $85/month, positioned as the “best value,” really is where Mailtrap becomes enterprise-ready.
With 100,000 emails, 3,000 domains, and up to 1,000 users, I could support multiple teams working on separate apps without friction. Inclusion of dedicated IPs is a big plus, something I previously had to pay extra for with SendGrid.
In my testing, this plan compares favorably to SparkPost, especially when looking at the deliverability guarantees and customer support responsiveness. For companies running multiple environments, Business is a safe middle ground.
Enterprise Plan at $750/month targets organizations operating at scale, with 1.5M emails, 1,000 users, and 30-day logs. I used this during a high-volume launch campaign, and the reliability was impressive. Free migration month and priority support made onboarding seamless.
When compared with Mailgun or SMTP2GO, Mailtrap enterprise plan feels more expensive upfront but justified if you need strong compliance, sandbox testing, and support.
Longer log retention was particularly useful for auditing in regulated industries.
Recommendation based on Price
If you are a solo developer or testing new features, the Free Plan is a perfect fit.
For small businesses, the Basic Plan strikes a great balance of cost and capability. Business Plan is my top recommendation for growing teams, its dedicated IP and scalability make it far more reliable than mid-tier competitors like MailerSend.
Enterprise is best suited for large organizations handling millions of emails monthly and requiring compliance guarantees.
Mailtrap is not the cheapest option, services like Elastic Email can undercut on price, but Mailtrap justifies its value with better testing, reliability, and developer-friendly design.
When Mailtrap is Recommended ✅
✓ If you are a developer or product team needing a safe email testing sandbox, Mailtrap shines. Its fake SMTP server lets you preview and debug without worrying about accidentally spamming real users, which I found way smoother compared to PostageApp.
✓ For startups scaling their email volume, Mailtrap offers predictable pricing and strong deliverability from the Basic and Business plans. I liked this transparency better than the unpredictable jumps I saw with Mailjet.
✓ When compliance and reliability matter (e.g., GDPR-conscious projects), Mailtrap certifications and log retention made me more comfortable than relying on budget-first providers like Elastic Email.
✓ If you value developer-first design, Mailtrap is a great fit. Its ready-to-use snippets across languages made my integration far faster than when I tried Amazon SES or AuthSMTP.
✓ For teams needing a balance of testing and production sending, Mailtrap unified workflow (test, send, analyze) avoids the fragmented setups I once struggled with in SendGrid.
When Mailtrap is Not Recommended ❌
✗ If you are primarily a marketer seeking advanced automation, Mailtrap falls short. I’d lean towards Mailchimp or MailerSend for richer workflows and campaign automation.
✗ When sending millions of low-cost emails is your only priority, Mailtrap pricing feels steep compared to budget-friendly options like SMTP2GO.
✗ If you want a built-in CRM or extensive native integrations, Mailtrap is not the best choice. Tools like Mailgun or Flowmailer may better support full customer lifecycle management.
✗ For teams without technical resources, the learning curve might be frustrating. Simpler platforms such as MySMTP offer less flexibility but require less technical know-how to get started.
✗ If phone-based customer support is critical, you’ll be disappointed. Mailtrap relies on chat and email, while alternatives like SMTP.com still provide traditional support channels.
Final Verdict on Mailtrap
After spending a good amount of time testing Mailtrap, I have come to see it as a tool that blends developer-first flexibility with features marketers can also appreciate.
Where it truly shines is in its email testing environmentthe fake SMTP server and detailed debugging options are unlike anything I have experienced with providers such as Mandrill or Postmastery. Mailtrap makes the risky process of testing email flows feel safe and even enjoyable.
On the sending side, its deliverability rates impressed me, staying consistently higher than when I trialed Elastic Email or Inboxroad. Platform is not perfect, it does not cater well to users who want advanced automation or a built-in CRM, areas where Mailchimp or MailerSend are stronger.
But if your focus is on building reliable email pipelines, testing thoroughly, and ensuring high deliverability, Mailtrap justifies its cost. For product teams, SaaS startups, and developers managing scale, it is one of the most trustworthy solutions I can recommend.
Photos: Mailtrap
FAQs related of Mailtrap
What is Mailtrap and why should I consider it for my business?
Mailtrap is an all-in-one email delivery platform for sending, testing, and monitoring emails at scale. It combines Email API/SMTP, Email Marketing, and Email Sandbox to ensure reliable delivery and safe testing. With 99.99% uptime, advanced analytics, and enterprise-grade security, it is trusted by leading global brands. Learn how it compares with Mailgun in terms of scalability and developer focus.
How does Mailtrap API enhance my application email capabilities?
Mailtrap API is a powerful tool that provides greater control over your application email services. From seamless integration to comprehensive email testing, you gain robust capabilities that elevate your business communication. Alternatives like SendGrid also offer APIs, but Mailtrap stands out with its safer pre-production environment.
How does Mailtrap handle spam and deliverability issues?
Mailtrap comes equipped with spam testing and reputation checks. These features ensure your emails do not end up in the spam folder, and they reach their intended audience efficiently. This is particularly useful when evaluating deliverability against services like SparkPost.
What sets Mailtrap apart from other email API services?
Mailtrap primary focus is on pre-production email testing, making it unique among email services. Additionally, its user-friendly interface, comprehensive features, and reliable service make it a preferred choice.
Does Mailtrap support integration with other software tools I use?
Yes, Mailtrap provides integration options with a variety of platforms and programming languages. This flexibility ensures that you can work with your preferred tools while benefiting from Mailtrap services.
What is the learning curve like for using Mailtrap API?
Mailtrap API is designed with usability in mind. With well-documented guides and a responsive support team, you can expect a fairly smooth learning curve.
How secure is Mailtrap service?
Security is a top priority at Mailtrap. They employ high-level encryption and compliance practices to protect your data and respect your privacy.
Does Mailtrap provide analytics and reports?
Yes, Mailtrap provides detailed insights into your email performance, including delivery rates, open rates, and bounce rates. These insights can inform your email strategy and help optimize performance.
What kind of support can I expect from Mailtrap?
Mailtrap offers a comprehensive support system that includes an online help center, FAQs, and a responsive support team to assist you with your queries or issues.
How scalable is Mailtrap service?
Mailtrap is designed to grow with your needs. Whether you’re a startup or a large enterprise, Mailtrap provides scalable solutions to meet your evolving email requirements.
Can Mailtrap handle HTML emails?
Absolutely! Mailtrap allows
you to test HTML emails effectively, making sure your carefully designed emails look as expected on various email clients.
Does Mailtrap help with email list management?
Yes, Mailtrap provides tools to manage and clean your email lists, thus enhancing deliverability and engagement rates.
What pricing plans does Mailtrap offer?
Mailtrap offers a range of pricing plans to suit different business sizes and needs. From a free option for small projects to custom solutions for large enterprises, they have got you covered.
Is there a free trial option for Mailtrap?
Yes, Mailtrap offers a free trial option. This allows you to try out their services and assess how well they fit your requirements before making a financial commitment.
How does Mailtrap 'Bounce' feature work?
Mailtrap ‘Bounce’ feature is a clever tool that allows you to simulate bounced emails. This helps you identify and address deliverability issues before they impact your real audience.
Can Mailtrap help me design better transactional emails?
Absolutely! By providing a safe testing environment, Mailtrap lets you experiment and optimize your transactional emails, ensuring they engage your customers effectively.
What is Mailtrap stance on data privacy?
Mailtrap takes data privacy seriously. They comply with GDPR and other applicable regulations, ensuring your data is handled with utmost care and respect.
Does Mailtrap provide any community or forum for user discussions?
Yes, Mailtrap has an active community where users can discuss ideas, share experiences, and get advice from peers. It is a great resource to learn and grow.
How can Mailtrap improve my team development workflow?
With Mailtrap robust testing and debugging features, your team can identify and resolve email issues more effectively, thus enhancing your development workflow and productivity.
What is the setup process like for Mailtrap?
Setting up Mailtrap is a breeze. With comprehensive documentation and user-friendly interfaces, you’ll have your testing environment ready in no time.
Can I use Mailtrap for my mobile applications?
Absolutely! Mailtrap API can be integrated with mobile applications, allowing you to test and manage your app emails effectively.
Why are developers around the world choosing Mailtrap?
Developers love Mailtrap for its focus on pre-production email testing, usability, robust features, and reliable service. It is a tool that truly understands and caters to their needs.
Specification: Mailtrap
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For startups or growing SaaS companies that need both transactional and marketing capabilities, it is often the better fit.
If Mailtrap limitations in automation or CRM-like functions are holding you back, MailerSend provides a smoother path forward without losing the reliability you’d expect from a modern email delivery provider.
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Product Research by
Navodit Ravi
www.linkedin.com
I am an accomplished marketing expert with over 10 years of experience focused on growth strategies, emerging technologies, and startup success stories. Driven by a passion for continuous learning, I actively explore and analyze new tools and services that enhance workplace productivity and efficiency. I possess deep expertise across key…
About Author
Connor Reynolds
sprout24.com
I'm Connor and I am an accomplished content marketing manager with over 14 years of experience creating engaging stories around business technologies and digital trends. With a passion for helping brands boost their online presence, I provide actionable insights into leveraging innovations in web design, digital marketing, SEO, and ecommerce.…
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Preeti Srivastava
www.linkedin.com
Preeti is an accomplished technical writer and content creator with expertise spanning engineering and technology.…
William Lewis –
Mailtrap has been an invaluable tool for our team, ensuring reliable and secure email testing.
Benjamin Adams –
We have found Mailtrap to be an invaluable tool for reliable email testing.