SocketLabs Alternatives (September 2025)

SMTP2GO is the scalable, reliable email deliverability solution. Worldwide servers, a robust API, and powerful reporting set us apart. Try our free plan!

Niezawodne Email API i SMTP w chmurze. Najwyższa dostarczalność i szczegółowa analityka wiadomości email wysyłanych z Twojego systemu lub aplikacji.

Email Delivery Platform to test, send and control email infrastructure in one place. Great for dev teams. Start today - Sign Up free!

Integrate in minutes and send transactional emails via our REST API or SMTP. Scale with our reliable global infrastructure and deliver emails to your customer's inbox instantly.

SMTP email relay service that is powerful, secured and reliable. Send better transactional emails and integrate easily with our email API.

Email API and SMTP relay to not just send and measure email sending, but also alert and optimise. We provide you with tools, expertise and support needed to reliably deliver emails to your customers inboxes on time, every time.

Send bulk, transactional, & marketing emails with our easy-to-use and reliable SMTP. Check the quality of email and improve delivery. Get started for free!

Elastic Email is a marketing platform, built on the most cost-effective delivery engine. Join tens of thousands of companies, which already send their emails!

Start sending emails with our top-rated service. Sign up for free now to streamline your email sending process with API or SMTP.

Email delivery, perfected with Mailtinni! 💌 Your new SMTP service: fast, reliable, highly secure. 🚀

Boost your email deliverability and engagement with Inboxroad. Our comprehensive solutions and expert guidance ensure your messages reach the inbox - Inboxroad

MailChannels ensures your customers' emails are always delivered. Trusted by the fastest-growing hosting providers.

Send your Transactional and marketing Emails safely, track your results and use powerful APIs designed for devolopers by developers. Try for free

JangoSMTP - Transactional Emails Made Easy. Highest Inbox Results. Live US-Based Support. API and SMTP Relay Sending.

Powerful Transactional Email APIs that enable you to send, receive, and track emails, built with developers in mind. Learn more today!

Unlock deeper deliverability insights, more efficiency and supercharged performance with the complete email package. Our email signals platform provides visual renderings and deep insights on your program's performance, paired with a best-in-class professional services team. So you can land every send.

The only deliverability tool you need. Find out why your email is going to spam and protect your sender reputation

Integrate seamlessly with Netcore's Email API for scalability, high deliverability, & real-time analytics. Designed for developers.

EmailConsul offers comprehensive email deliverability solutions, including DMARC monitoring, spam traps detection, seedlisting and inbox placement tests, Google Postmaster integration, SNDS integration, IP and domain blocklist monitoring, lookalike detection, and logs monitoring.

Take your email outreach to new heights with trusted email deliverability software. Start today and watch your inbox placement rates soar.

Streamline your emailing and boost your sales with Mailjet. We serve all your email and SMS needs with one simple and powerful service.

Rock-solid reputation and a reliable API with endless possibilities for sending your transactional emails.

MailUp is your complete email and SMS delivery solution that combines powerful email marketing tools with SMTP relay and plugins for e-commerce, CRM, and CMS systems

Improve domain reputation and increase the quality of your mailing list by validating emails before sending a campaign, or at the point of capture.

This reliable and secure transactional email service by Zoho Mail ensures guaranteed and fast delivery of transactional emails, and comes with a pay-as-you-go pricing plan.

Your smart DMARC reporting and monitoring platform. Ensure domain-level security and email deliverability with EasyDMARC’s DMARC, SPF, DKIM, and BIMI services.

Launch Your Own Email Service Provider and Email Marketing Agency. Sell it to your customers and clients, or use it in-house.

Track and optimize email deliverability - from inboxing and open rates to blocklist monitoring, engagement levels and growth rate.

Send Transactional and Promotional Emails in bulk using SendClean. Best Email Marketing and Email API Solution for Enterprises. White lable Email Solution.

EmailSuccess is a reliable, fast and secure Mail Transfer Agent capable of delivering huge volumes of emails to the biggest email service providers.

Empower your brand with centralized email compliance management. Maximize revenue through compliant outbound marketing.

Buy SMTP service. 99% Inbox. Free to test. Best price/quality SMTP offer. Buy with Bitcoin. Send, receive, route/forward emails.

Mailosaur removes the frustration of testing everything a user might do. 
Test password resets, replies, two-factor logins, and more.

Email on Acid is the leading email pre-deployment checklist and a configurable part of your email marketing workflow, from accessibility checks to email previews.

Reliable, secure, extensible, and customizable mail server software platform made for on-prem and cloud-native deployment; easily scalable, smart licensing.

Learn how to use Mailchimp Transactional Email to send targeted and event driven messages to anyone, fast—with best-in-class deliverability.

Clean your email list with Mailercheck's email verification tool and improve deliverability with our email testing suite to boost email marketing ROI.

GlockApps - Email Deliverability Test Experts - Get insights into your email deliverability, reputation, authentication, and DMARC compliance.

Improve domain reputation and increase the quality of your mailing list by validating emails before sending a campaign, or at the point of capture.

The best email deliverability tool to raise your reputation and stop landing in spam. Reach the inbox and get better email results with MailReach.

Easily set up WordPress email delivery with advanced WordPress SMTP features and experience secure delivery of your WordPress emails. Get started free!

Start sending transactional and marketing email in minutes. Easily scale to enterprise-volume with Twilio SendGrid’s Email API. Try it free!

Mailercloud is the ultimate platform for growing businesses, offering smart and intuitive email marketing tool to help you thrive in the digital world.

Litmus is the all-in-one email marketing platform that provides the tools and solutions your team needs to make every send count. Try for free today!

If you want excellent email deliverability, our services are highly dependable. Reach out to us for bounce checker and hunter email.

Improve your email deliverability with Bouncer's robust email verification and deliverability platform. 🌐

Manage and email your subscribers for far cheaper with EmailOctopus. Drag and drop email builder, powerful analytics, bounce/complaint tracking and more.

Verify your email list in minutes, or integrate real-time email verification into your app with our API. Over 18 billion emails verified. Get started for free.

Build, send, and analyze employee emails in ContactMonkey’s internal communication email platform.

Email Delivery solutions for email marketers and small business owners provided by Email Delivered, the premier solution for email deliverability.

FireDrum Email Marketing is the most affordable & easy to use email marketing software solution focusing on deliverability & powerful features that matter.

Create your own marketing strategy Send in seconds Send & analyze email marketing campaigns. Start your free plan with unlimited credit. Free for a lifetime! Sign up for free See pricing INBOX is an email marketing tool with more powerful features and flexibility than any other Easy To Use Create a campaign in | Create email marketing your subscribers will admire INBOX

Achieve and maintain DMARC enforcement 4x faster than any other platform with Valimail’s best-in-class email authentication solutions.

Optimize your email strategy with ZeroBounce. We offer top-tier email validation, list cleaning, and address verification to reduce spam traps and enhance deliverability.

Test new user signups, transactional emails, spam scores, and more. Get started on our free forever plan with unlimited email addresses and mailboxes.

Build beautiful, responsive emails with Benchmark's email marketing platform to engage subscribers, nurture leads, and track results.

UniOne is a transactional email service: you can send Transactional Emails simple and cheap with the help of platform API Email UniOne.

Webbula offers email hygiene, email verification, and data appends solutions to help you clean and grow your email database.

Ongage is an email marketing platform that allows you to deliver emails, learn from customers, and optimize behavior at scale. Want to see KPIs going up?

Connect with customers on their preferred channels—anywhere in the world. Quickly integrate powerful communication APIs to start building solutions for SMS and WhatsApp messaging, voice, and email.

Discover AhaSend, the Email Service Provider dedicated to revolutionizing transactional emails. Enjoy hassle-free pricing at $0.50 per 1,000 emails and experience unmatched delivery times. No hidden fees, no brackets, just straightforward service designed for your peace of mind.

Incoming Email for your Web Application, send and receive email via HTTP Post in the Cloud

A pioneering email deliverability services company that's been helping top brands solve their toughest email delivery problems, since 1999.

Grow your business with Brevo, the all-in-one platform to manage customer relationships across email, SMS, chat, and more. Get started for free.

Fast, secure, and sustainable email services provided by email professionals. Powerful Email and Domain Hosting for businesses and organizations.

Simple and powerful email verification JSON API using SMTP, typo checks, syntax validation, and free and disposable provider filtering. Free for personal use.

Flexmail is het e-mailmarketing platform voor effectieve en gepersonaliseerde e-mails. Beheer je campagnes, analyseer statistieken en groei met onze software.

Sending marketing emails is easy with iContact’s business email platform. Go from signing up to sending emails in minutes. No marketing experience required, no strings attached.

OX Cloud Email - Easy, Fast, Secure - Powerful email built for business

Newsletter software for people like you.

MailSoar, The first full-service email deliverability expert agency. We help deliver emails to improve sender reputation and reduce spam complaints reliably

A suite of email marketing tools to monitor Inbox placement, Deliverability, IP health and Sender Reputation, compatible with all Email Service Providers.

Email deliverability software guaranteed to boost email placement. InboxAlly’s real-time tracking and email warmup ensure your messages hit the inbox, not spam.

Ensure deliverability and inbox placement for your transactional emails with Oracle Cloud Infrastructure Email Delivery, based on Dyn's Email Delivery technology.

The comprehensive solution for all your reporting and cash flow forecasting needs. Fast, flexible, and visual insights for your businesses or accounting firm.

Robly is a leading innovator in Small Business Marketing Automation. Robly invented OpenGen in 2014 and Robly A.I. in 2015.

Use real-time behavior data and AI to convert more customers with Mailchimp's marketing, automation & email marketing platform. Easy to use - start for free!

Unlock financial agility and take control of your company's financial performance with Planful’s Financial Performance Management Platform.

Gain reliable and actionable insights to transform academic outcomes with our award-winning student success software for higher education. Request your demo!

Loops makes email marketing for modern SaaS companies easy. It's the best way to create, send and track beautiful email campaigns.

Use the text messaging service 17,000+ businesses trust. Send SMS marketing campaigns, receive texts, and message one-on-one.

Spot any issue that impacts important business KPIs with Splunk APM. Accelerate MTTR by combining all the related data in intuitive visuals.

InMoment's text analytics software includes sentiment analysis and verbatim analysis capabilities to help you understand your customer feedback.

Helping brands creating moments of delight. Because every superhero needs a sidekick.

Securely archive, search, and analyze your company's email on one platform, preserving vital data while gaining instant business insights.

PriceLabs is a dynamic pricing tool and revenue management platform for Airbnb, Vrbo, short-term & vacation rental owners, and property managers.

Explore WhyLabs, the leading platform for AI observability, LLM security, and model monitoring. Guardrail Generative AI applications in real-time to mitigate data leakage, prompt attacks, and hallucinations.

Comprehensive user behavior analytics software for insider threat management, data loss prevention, workplace productivity, employee monitoring & more

Explore AuthMailer transactional email service! Discover its features, pros, and cons to send transactional emails.

Ensure communication with customers and suppliers, modernize messaging infrastructures and automate manual business processes thanks to Retarus’ intelligent cloud solutions.

Email checker online tool. Ensure email accuracy with our efficient tool. Verify email addresses instantly and improve your communication reliability. Try for free!

The leading strategic planning software platform. Move from strategy to action by operationalizing your plan, aligning your people, and making it easy to manage stakeholder expectations.

Prueba gratis Contáctanos Ya nos eligen +1,200 marcas en +25 países >> Analiza múltiples fuentes de datos y consolida todo en un solo lugar. Soluciones eficientes para cada desafío de tu negocio. Tus datos centralizados,clasificados y desglosados Analiza, gestiona y comprende el rendimiento de todas tus acciones de marketing desde una sola plataforma.

GMass allows you to easily schedule emails, send out mass emails and mail merge campaigns and more with Gmail! Click here to learn about more features!

Take your email deliverability to the next level with AI-powered email warmup for unlimited mailboxes and comprehensive deliverability tests

ManageEngine Exchange Reporter Plus is a web based Exchange Server Reporting software. It provides reports on Exchange mailboxes, mailbox size, public folders, Exchange Servers, Active Directory and the entire Exchange Infrastructure in detail.

Trigger thousands of messages in minutes. Integrate seamlessly. Only pay for what you need. Try Brevo's Messaging API for free — no credit card needed.

Courier is a notification API built for developers. Design once, and deliver to any channel – email, Slack, SMS, push, and more – all through a single API.

Harness unparalleled operational insight with Apica's Observatory Platform. Designed for modern enterprises, our solution delivers scalable, powerful, and cost-effective APM monitoring for complex computing ecosystems.