Table of Contents
- Introduction
- eSputnik Review
- UniSender Review
- GetResponse Review
- SendPulse Review
- MailChimp Review
- Comparison Table
- Pricing Comparison
- How to Choose
- Frequently Asked Questions
Introduction
Email marketing remains one of the most effective customer communication channels despite the rise of social media and instant messaging. According to the Data & Marketing Association, the average ROI of email campaigns is 4200% — every dollar spent brings $42 in return. But achieving these numbers requires the right email marketing service.
The global email marketing market was valued at $11.4 billion in 2025 and continues to grow at 10–12% annually. Businesses are shifting from manual mass blasts to personalized automated workflows. The ability to segment audiences, set up trigger sequences, and analyze subscriber behavior has become essential for businesses of every size.
In this detailed review we compare five popular email marketing services available internationally: eSputnik, UniSender, GetResponse, SendPulse and MailChimp. These platforms cover the full spectrum of business needs — from freelancers and startups to large enterprises with million-subscriber databases.
We evaluated each service on:
- Interface usability and email editor quality
- Automation and trigger sequence capabilities
- Deliverability rate and sender reputation management
- Subscriber database segmentation depth
- A/B testing and experimentation features
- Third-party integrations (CRM, CMS, e-commerce)
- Pricing structure and value for money
- Customer support quality
Whether you are just getting started with email marketing or looking to switch providers, this article will help you make an informed decision based on practical experience rather than just feature lists.
eSputnik — In-Depth Review
eSputnik is a Russian marketing automation platform founded in 2012. Over a decade of development has turned it from a simple email tool into a full-fledged Enterprise-level marketing platform. eSputnik targets medium and large businesses, e-commerce stores with extensive product catalogs, and companies requiring flexible automation workflows.
Key Features
The visual email editor is one of the most polished on the market. It supports responsive design out of the box, custom block creation, and template reuse. For advanced users, a full HTML editor with syntax highlighting and multi-device preview is available.
Database segmentation is eSputnik's strongest asset. You can segment subscribers based on up to 200 parameters: gender, age, location, purchase history, viewed products, average order value, order frequency, and more. Segments can be combined with logical operators for complex custom groups.
Trigger automation in eSputnik lets you chain emails to virtually any event. When a new user registers, the system sends a welcome email, then a useful article the next day, followed by a personalized discount after a week. If a user abandons their cart, a reminder goes out within an hour. Multi-channel scenarios (email + SMS + push notifications) within a single sequence are supported.
Deliverability
eSputnik uses proprietary delivery technology with automatic sender reputation monitoring. The system tracks bounce rates and spam complaints, pausing campaigns when thresholds are exceeded. Claimed deliverability: 97–99%. Full authentication protocol support: DKIM, SPF, DMARC. Detailed per-email analytics with breakdowns by mailbox provider.
Pricing
Starts at roughly $12/month (1,200 RUB) for up to 2,500 subscribers. A 7-day free trial with full functionality is available. Enterprise plans with dedicated IP and account manager are available on request.
UniSender — In-Depth Review
UniSender is one of the oldest Russian email services, founded in 2010. Unlike eSputnik, UniSender was designed from the start as a simple, straightforward tool for small and medium businesses. It does not overload users with rarely-needed enterprise features, which is its main advantage.
Key Features
The drag-and-drop editor lets you arrange ready blocks (text, image, button, divider) and fill them with content. Over 100 ready-made templates are available across categories: greetings, news, promotions, welcome sequences. UniSender supports three communication channels: email, SMS, and Viber messages — the latter offering high open rates compared to email.
Segmentation includes filters by activity, location, gender, and age. Subscribers can be grouped into dynamic segments that update automatically — for example, "customers who haven't purchased in 30 days." Contact import is supported from CSV, Excel, and popular CRMs.
\u{201c}UniSender is the best choice to start with. No complex setup needed, everything works out of the box. Transparent pricing with no surprises. After three years with them, I have never wanted to switch.
Deliverability
UniSender guarantees 95–98% deliverability. Automatic reputation monitoring alerts users when bounce rates increase. DKIM, SPF, DMARC are supported. New IP addresses require gradual warm-up with increasing send volumes.
Pricing
One of the most affordable options. Starts at approximately $7/month (700 RUB) for up to 1,000 subscribers. A free plan for testing: 250 subscribers and 1,000 emails per month.
GetResponse — In-Depth Review
GetResponse is a Polish email marketing platform operating since 1998 — one of the oldest services worldwide, demonstrating product stability and maturity. GetResponse serves the global market with full localization in multiple languages including Russian, and accepts international payments. For English-speaking audiences, it offers extensive documentation, 24/7 support, and seamless integration with major global e-commerce platforms.
Key Features
The AI-powered email generator creates complete emails from a text description in seconds. It works in English, with steadily improving quality for other languages. The sales funnel builder is a unique feature: you select a goal (subscription, sale, webinar registration) and get a ready-made scenario with emails, landing pages, and automation.
GetResponse includes a built-in webinar system — a notable differentiator. You can host webinars directly from the platform, collect registrations, and send automated follow-up emails. Conversion funnel analytics tracks the full customer journey from email click to purchase, letting you measure real campaign effectiveness beyond open and click rates.
With 150+ integrations and a powerful API, GetResponse connects with Shopify, WooCommerce, Magento, Salesforce, HubSpot, and other major platforms. Behavioral automation triggers emails based on specific actions or inactions.
Deliverability
Claimed deliverability: 99%. Automatic reputation management pauses campaigns when spam complaint thresholds are exceeded. Full authentication support. Dedicated IP available on higher-tier plans.
Pricing
From $15/month for up to 1,000 subscribers. 30-day free trial with no credit card required for the first 30 days. The "Max" plan offers dedicated IP, phone support, and custom reporting.
SendPulse — In-Depth Review
SendPulse is a multi-channel marketing platform founded in 2015 with headquarters in the United States. It serves a global audience with interfaces in multiple languages. SendPulse's main differentiator — a generous free plan — makes it particularly attractive for startups and small businesses testing email marketing.
Key Features
SendPulse supports email campaigns, SMS marketing, web push notifications, Viber, and WhatsApp — one of the few platforms combining this many channels in a single dashboard. The chatbot builder for Telegram and Facebook Messenger allows visual scenario creation without coding. Built-in CRM manages deals, tasks, and customer interaction history.
A/B testing compares subject lines, sender names, and content variations. Advanced analytics provides detailed reporting on opens, clicks, geographic distribution, and device usage. The platform integrates with Shopify, WooCommerce, WordPress, and other major services.
Deliverability
97–99% deliverability rate. Real-time IP reputation monitoring. Dedicated IP addresses available on paid plans. Automatic sender reputation warm-up for new accounts.
Pricing
Free plan: up to 2,500 subscribers and 15,000 emails per month with full functionality and no branding. Paid plans start at $7.20/month for unlimited emails.
SendPulse free planSendPulse offers one of the most generous free plans in the industry — no branding, no feature restrictions. is ideal for testing with zero financial risk.MailChimp — In-Depth Review
MailChimp is the American email marketing giant founded in 2001. With over 14 million users worldwide, it sets industry standards — many features now considered basic were pioneered by MailChimp. It offers the most extensive integration ecosystem and the most sophisticated AI-powered tools. However, it has significant limitations for certain regions.
Key Features
MailChimp's email editor with AI recommendations analyzes subject lines, content, and send times to suggest optimal variations. Built-in CRM stores full interaction history for every subscriber. The landing page builder creates opt-in pages and promotional sites quickly. Branding control checks email compliance with brand guidelines.
With 300+ integrations — the highest among all five services — MailChimp connects with virtually every major platform. Behavioral segmentation creates hyper-personalized offers based on browsing and purchase history. Advanced analytics includes click heatmaps showing exactly which email elements attract the most attention.
Audience management tools help maintain list hygiene with automatic cleaning of inactive subscribers. Predictive analytics scores subscribers by likelihood to purchase, churn, or engage.
Deliverability
Considered one of the best in the industry — 99%+. Mailbox providers trust MailChimp's IPs due to strict anti-spam policies and decades of reputation. New accounts undergo manual review; violators are banned without warning.
Pricing
Free plan: up to 500 subscribers and 1,000 emails per month. Paid plans start at $13/month. Higher-tier plans include multivariate testing, phone support, and dedicated onboarding.
Email Marketing Services Comparison Table
| Feature | eSputnik | UniSender | GetResponse | SendPulse | MailChimp |
|---|---|---|---|---|---|
| Founded | 2012 | 2010 | 1998 | 2015 | 2001 |
| Platform Type | Marketing Automation | Email + SMS + Viber | Full-stack Marketing | Multi-channel Platform | Email + CRM |
| Editor | Visual + HTML | Drag-and-drop | AI-powered | Visual + HTML | AI-powered |
| Automation | Advanced multi-channel | Basic | Sales funnels + Webinars | Scenarios + Chatbots | Advanced |
| Segmentation Fields | Up to 200 | Dynamic groups | Tags + custom fields | Filters + tags | Behavioral |
| A/B Testing | Yes | Yes | Yes | Yes | Yes |
| Integrations | 50+ | 30+ | 150+ | 80+ | 300+ |
| Channels | Email, SMS, Push | Email, SMS, Viber | Email, Webinar | Email, SMS, Push, Viber, WhatsApp | |
| Free Plan | 7-day trial | 250 subscribers | 30-day trial | 2,500 subscribers | 500 subscribers |
| Starting Price | $12/mo | $7/mo | $15/mo | $7.20/mo | $13/mo |
Pricing Comparison
| Service | Free Tier | Entry Price | 5,000 Subscribers | Dedicated IP |
|---|---|---|---|---|
| eSputnik | 7-day trial | $12/mo | ~$35/mo | Yes |
| UniSender | 250 subscribers | $7/mo | ~$25/mo | No |
| GetResponse | 30-day trial | $15/mo | ~$49/mo | Yes (Max plan) |
| SendPulse | 2,500 subscribers | $7.20/mo | ~$15/mo | Yes |
| MailChimp | 500 subscribers | $13/mo | ~$45/mo | Yes (Premium) |
How to Choose the Right Email Marketing Service
The right platform depends on several factors that should be evaluated before committing.
Business Size and Budget
For freelancers and microbusinesses, SendPulse or UniSender offer the best value with generous free plans and low entry prices. For growing businesses with monthly revenue above $10,000, eSputnik's advanced segmentation and automation capabilities justify the higher cost. For enterprises and international companies, GetResponse or MailChimp provide the global infrastructure and support needed.
Target Audience Location
If your audience is primarily in Eastern Europe or CIS countries, consider regionally-optimized services like eSputnik or SendPulse. For global campaigns targeting North America, Western Europe, or Asia, MailChimp and GetResponse have the best deliverability and local data centers.
Automation Requirements
Complex multi-channel automation with dozens of segmentation parameters calls for eSputnik or GetResponse. Basic welcome sequences and cart abandonment reminders can be handled well by UniSender or SendPulse without overpaying for unused functionality.
\u{201c}75% of email revenue comes from triggered campaigns rather than one-size-fits-all blasts. The right automation platform directly impacts your bottom line.
Frequently Asked Questions
Which email marketing service is best for beginners?
For beginners, SendPulse (free plan with 2,500 subscribers) and UniSender (simple interface, low price) are the best options. Both offer intuitive editors, ready templates, and responsive support.
Which service has the best deliverability rate?
MailChimp and GetResponse lead with 99%+ deliverability. Among region-specific platforms, eSputnik claims 97–99%. However, deliverability depends 80% on your list quality, authentication setup (DKIM, SPF, DMARC), and content relevance rather than the platform alone.
Is MailChimp available in all countries?
No. MailChimp is not available in certain countries due to US sanctions and regional restrictions. The interface is English-only. Check availability for your location before creating an account. Alternatives like GetResponse or SendPulse offer comparable features with global availability.
Which service offers the most generous free plan?
SendPulse offers the best free plan: 2,500 subscribers and 15,000 emails per month with full functionality and no branding. MailChimp provides 500 subscribers and 1,000 emails. UniSender offers 250 subscribers with branding in emails.
What are trigger emails and why do I need them?
Trigger (automated) emails are sent when a specific event occurs: user registration, order confirmation, abandoned cart, birthday, or reaching a loyalty milestone. They enable timely personalized communication without manual work. All five services support triggers, with eSputnik and GetResponse offering the most sophisticated implementations.
Do I need to set up DKIM, SPF, and DMARC?
Yes, absolutely. Without these authentication protocols, major mailbox providers (Gmail, Outlook, Yahoo) will flag your emails as spam. All reviewed services provide setup guides. Some platforms like eSputnik and SendPulse offer automatic DKIM/SPF configuration when you connect your domain.
Which service is best for e-commerce stores?
For e-commerce, eSputnik (200 segmentation parameters, deep CRM integration, dynamic content) and GetResponse (sales funnels, conversion analytics, webinar demos) are top choices. SendPulse works well for smaller stores with its multi-channel approach.
Can I migrate my subscriber list between platforms?
Yes, all services support CSV import/export and API-based migration. Ensure every subscriber has given explicit consent to receive emails — the new platform may suspend accounts for spam policy violations. Clean your list before migration by removing inactive addresses.
Which platform is best for international email campaigns?
For global audiences, MailChimp (global infrastructure, highest mailbox provider trust) and GetResponse (EU data centers, international anti-spam compliance) are optimal. SendPulse with US data centers also performs well internationally.
What is the difference between MailChimp and GetResponse?
MailChimp offers more integrations (300+ vs 150+), stronger brand recognition, and advanced predictive analytics. GetResponse provides built-in webinars, sales funnel builder, and more affordable pricing for growing lists. GetResponse also has better availability in regions where MailChimp is restricted.
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