Fluent SMTP Alternatives (September 2025)

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

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

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!

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

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

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

An email marketing plugin for WordPress trusted by 600,000+ websites. Send newsletters, post notifications and automate your marketing for WooCommerce.

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

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.

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

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.

Everything you need for more successful email delivery and performance management, from simple sending tools to deeply informative reporting.

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.

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

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

Easily sell digital downloads through WordPress with this easy to use WordPress plugin.

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.

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

Mailbutler is the email software extension plugin for Apple Mail, Gmail, and Outlook that helps you stay productive and professional.

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

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!

MonsterInsights is the best Google Analytics plugin for WordPress. Set up Google Analytics for WordPress with just a few clicks. Over 100 million downloads.

Duplicator is the best WordPress backup and migration plugin, trusted by 1,000,000+ users. Easily create automated website backups with our WordPress backup plugin.

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

Ninja Tables is the smartest WordPress table plugin to create all types of tables with dynamic data. lightweight and user-friendly with lots of great features!

Unlock the Full Potential of Your WordPress with Our Comprehensive, User-Friendly Plugins – Crafted with Care!

AffiliateWP is the easiest and best affiliate management plugin for WordPress.

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

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

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

FlowMattic is a must-have automation plugin for WordPress. It acts like a bridge between your favourite apps through your WordPress site.

Windows mail server software with webmail, caldav, carddav, antivirus, spam filtering - Fast, secure email server software for windows. Download free mail server trial.

The only free, fully open source and self-hosted WordPress plugin for maintaining multiple sites from one location.

Best email deliverability with Zapmail. Google Workspace mailboxes for $3/month with automated DKIM, SPF, DMARC, and easy integration with cold email tools like Instantly, SmartLead and ReachInbox.

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.

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

Freemius is a SaaS engine for selling WordPress plugins and themes. Start selling now with Buy Button/Checkout, licensing, subscriptions, affiliation + more

Send personalized mass emails, directly from Gmail. Track your results in real time. Follow up easily and get more replies.

Home

Set up email forwarding in seconds and start receiving and sending emails with your domain name. Absolutely free. No registration. 24/7 Support.

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

The Wordfence WordPress security plugin provides free enterprise-class WordPress security, protecting your website from hacks and malware.

Your search for the best WordPress marketplace plugin reaches a happy ending! Now that you have found us, lets get started and build your dream marketplace.

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

Take back control of your email with this easy-to-deploy mail server in a box.

WishList Member is a membership site software that will securely protect your digital downloads, online courses & content. Set up in minutes.

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

Secure Windows or Linux mail server that includes chat, calendaring and contacts and offers a cost-effective alternative to Microsoft Exchange.

Easy to Install and manage, carrier class Mail Server Software with modern fast WebMail interface, spam protection and much more.

Make your website reach the stars. Use the most powerful caching plugin for WordPress. WP Rocket is easy to use, ready to improve your SEO and conversions.

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

A powerful email server that blocks 99% of junk emails. It also enables encrypted emailing with large sized file sharing and helps in preventing IP leakages

WPForms is the best WordPress forms plugin, trusted by over 6,000,000+ users. Create powerful WordPress forms in minutes with our drag & drop form builder!

Switch to a better way of managing multiple WordPress websites from one dashboard.Get one-click updates, rock-solid security, and fast, reliable backups with

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

Create custom forms on WordPress with Gravity Forms, the easiest-to-use, secure, and reliable WordPress form builder plugin for your website.

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

RainLoop Webmail - Simple, modern & fast web-based email client.

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

Run your email campaigns with the best email warm up tool provided by inboxigniter & keep emails away from spam folder. Register today!

Warmbase email warmup tool raises your sender reputation by positively interacting with your email. Connect your email account within 2 min.

Solid Security Pro—Your secure foundation built by WordPress security experts since 2014. The only security plugin you need.

Magnetic Mailer is one of the Best AWS SES Email Sending Software available in the market. You can also use SendGrid API, Elastice Mail API and SMTP Settings.

WordPress security plugin done right: firewall and anti-spam, malware scanner, file recovery & integrity checking

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

Easily monetize your WordPress site w/ subscriptions, courses, paywalls, communities, more. MemberPress is the only WordPress membership plugin built for 7-figure creators.

Streamline your SPF record management, enable DMARC compliance, and improve your email deliverability by fixing the SPF 10 record limitation.

Use our Mail Tester to test email. Get 3 Free Spam Tests to check your Email Deliverability and spam score with our free email spam checker.

WPCode makes it easy and safe to add custom WordPress features through code snippets, so you can reduce the number of plugins on your site.

Improve the deliverability of your cold email campaigns with our network of inboxes interacting with each other.

The ultimate WordPress plugin for security, backups, site performance, and growth tools

Email Tracking Chrome extension with no signature. Mail Tracker for Gmail. Real-time Email tracking and notifications.

Fast, private email hosting for you or your business. More productive, lightning fast, simple and built to save you time.

Everything you need to manage multiple Wordpress sites effortlessly. Ideal for Agencies and WordPress Freelancers.

Discover Alinto, email solutions for organisations and service providers. ensure the deliverability, management and the security of your emails.

Assemble and automate documents, generate reports and templates supporting various data sources, file type input & output with various engine deployment options.

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

Find out about software solutions simplifying Microsoft project portfolio management, migration, integration, and business intelligence.

Host your professional email on a secure, privacy-guaranteed, and ad-free email hosting service built-in with features like email marketing services can do.

Find out about software solutions simplifying Microsoft project portfolio management, migration, integration, and business intelligence.

Free Email tracking for Gmail & Google Inbox without branding. Real-time notifications and link tracking. Works in Chrome, Firefox and Opera.

Welcome to the home of SmartFTP, the most popular FTP client for Windows.

Formidable Forms is the best WordPress forms plugin. Over 300,000 professionals use our WordPress form builder to create contact forms, surveys, calculators, and other WP forms

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

Manage multiple WordPress websites from one dashboard. Schedule backups, migrate WordPress website, automate updates, monitor website traffic and SEO

Amazon Simple Email Service (SES) is a cost-effective, flexible, and scalable email service provider that allows developers to send email from within any application.

Use Mailmodo to create and send interactive emails your customers love. Drive conversions and get better email ROI. Sign up for a free trial now.

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

WPSec.com is an online WordPress security scan for detecting and reporting WordPress vulnerabilities.

The ultimate email marketing software and marketing automation platform that will not break your bank. Try Moosend for free!

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

MotoPress is a creator of the hotel and appointment booking plugins, Elementor templates, Gutenberg blocks, and multiple WordPress designs and tools.

Access, store and share files in the cloud or behind your firewall. Designed for users, engineered for IT. Proven to scale to 40,000+ users. Tailored to your stack.

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

The only Privacy Suite for WordPress - Get ready for GDPR, ePrivacy, CCPA and more. Brought to you by Really Simple SSL and the Complianz Team.

PerceptPixel: Advanced Image CDN offering real-time image transformation, automatic optimization, and fast loading images globally. Ideal for developers needing seamless integration and robust image handling with features like background removal, WebP conversion, and custom CDN solutions. Enhance your site's speed and SEO with our developer-friendly image API. With it's easy to use online image editor now remove and replace image backgrounds with just a click

An essential suite of email and web security services for SMB and Enterprise.

SQL Server, MySQL and PostgreSQL Backups made easy with SQLBackupAndFTP. All Backup types, Encryption, Compression, Scheduling, Email notifications, Sending to Folder, FTP or Cloud

Online fundraising with the GiveWP WordPress Donation Plugin allows you to accept donations online, track your fundraising progress, and more.