Go Mail Merge vs Retainful vs Moosend vs SMTP Comparison
Go Mail Merge
Starting at $8.33 /Month
- Individuals
- Medium Business
Go Mail Merge is an efficient, user-friendly platform designed to streamline the process of sending emails to a large audience. It allows you to manage multiple email addresses via a Google Sheet, select your draft messa…
Retainful
Starting at $19 /Month
- Free Trial
- Large Enterprises
- Medium Business
Welcome to Retainful: an eCommerce tool designed to help online stores succeed since 2018. Our automated email marketing solutions enable store owners to recover abandoned carts, reduce customer attrition and grow repeat…
Moosend
Starting at Contact for pricing
- Large Enterprises
- Medium Business
Moosend is a powerful Email Marketing Software for small businesses that's easy to use and affordable, with a robust feature set. With its user-friendly interface and newbie-friendly training, Moosend makes it easy to cr…
SMTP
Starting at Contact for pricing
- Individuals
- Freelancers / Consultants
SMTP was built to solve the challenges of sending email from devices behind restrictive firewalls or communicating directly with a server over SMTP. It features multiple design elements and components that have been opti…
Retainful leads on user satisfaction with a 5.0-star rating across 2 reviews.
Go Mail Merge vs Retainful vs Moosend vs SMTP — at a glance
| Feature | Go Mail Merge | Retainful | Moosend | SMTP |
|---|---|---|---|---|
| Rating | 4.2 / 5 | 5.0 / 5 | 4.3 / 5 | 4.3 / 5 |
| Reviews | 3 | 2 | 416 | 11 |
| Starting price | $8.33 /Month | $19 /Month | Contact for pricing | Contact for pricing |
| Free trial | No | Yes | No | No |
| Free version | No | No | No | No |
| Best for | Individuals, Medium Business, Small Business | Large Enterprises, Medium Business, Small Business | Large Enterprises, Medium Business, Small Business | Individuals, Freelancers / Consultants, Large Enterprises |
| Category | Email Marketing Software | Email Marketing Software | Email Marketing Software | Transactional Email Software |
| Platforms | SaaS/Web/Cloud | SaaS/Web/Cloud | SaaS/Web/Cloud | SaaS/Web/Cloud |
| API | — | — | Available | Available |
| Support modes | Online | Online | Business Hours, Online | 24/7 (Live rep), Business Hours, Online |
| Certifications | — | — | GDPR | — |
| Data residency | US | US | US | US |
Key differences between Go Mail Merge and Retainful
- Pricing: Go Mail Merge starts at $8.33 /Month, while Retainful starts at $19 /Month.
- Free trial: Retainful offers a free trial; Go Mail Merge does not.
- Target audience: Go Mail Merge is built for Individuals and Medium Business, while Retainful targets Large Enterprises and Medium Business.
- User satisfaction: Retainful scores higher with a 5.0-star average.
- Deployment: Go Mail Merge supports SaaS/Web/Cloud; Retainful supports SaaS/Web/Cloud.
Compare Go Mail Merge vs Retainful vs Moosend vs SMTP — and walk away knowing which one fits.
Which tool fits your team best
Which is actually cheaper for your team size
Where each product wins, per real buyers
Most Email Marketing Software tools look identical on paper. This comparison cuts to the differences that matter — pricing structure, team fit, and what real buyers found after signing up.
Biggest differences
Features
Pricing
Buying details
Security
Buyer feedback
Integrations
Product tour
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Go Mail Merge, Retainful, Moosend vs SMTP: Biggest differences
Start here before you go deeper into features.
Individuals, Medium Business, Small Business
Large Enterprises, Medium Business, Small Business
Large Enterprises, Medium Business, Small Business
Individuals, Freelancers / Consultants, Large Enterprises
Go Mail Merge typically suits Individuals and Medium Business. Retainful tends to fit Large Enterprises and Medium Business better. The right choice depends on your team size, workflow, and whether a free trial matters.
Description | Go Mail Merge is an efficient, user-friendly platform designed to streamline the process of sending emails to a large audience. It allows you to manage multiple email addresses via a Google ... Read More about Go Mail Merge | Welcome to Retainful: an eCommerce tool designed to help online stores succeed since 2018. Our automated email marketing solutions enable store owners to recover abandoned carts, reduce ... Read More about Retainful | Moosend is a powerful Email Marketing Software for small businesses that's easy to use and affordable, with a robust feature set. With its user-friendly interface and newbie-friendly ... Read More about Moosend | SMTP was built to solve the challenges of sending email from devices behind restrictive firewalls or communicating directly with a server over SMTP. It features multiple design elements and ... Read More about SMTP |
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SpotScoreWhat's this? ↗ | 7.8/10 | 8.3/10 | 8.8/10 | 7.2/10 |
User RatingsBased on verified Spotsaas reviews | ||||
Best Company Size | — | — | 1 to 500 employees | 50 to 500 employees |
Get pricing help | Get pricing help |
Where each option fits best
See where each product is strongest, which teams it fits, and what causes buyers to keep looking — before you commit.
Based on buyer reviews and verified product data collected by Spotsaas.
Key strengths
- Email Marketing: Moosend is an intuitive platform that lets teams create, automate, and analyze email campaigns, keeping you connected with your audience without unnecessary complexity.
- Advanced Automation Features: The reliable automation capabilities let you trigger personalized messages based on user behavior. This means you can nurture leads effectively while your team focuses on strategic initiatives.
- Real-Time Analytics: Moosend provides comprehensive reporting tools that give you insights into campaign performance. This data-driven approach helps executives make informed decisions to optimize marketing strategies and boost ROI.
- Reliable Email Delivery: With SMTP, your emails reach their intended recipients consistently. Businesses benefit from reduced bounce rates and improved communication efficiency.
- Scalability: Whether you're sending a few emails or millions, SMTP scales easily to meet your growing needs. This flexibility helps companies expand their outreach without hitting technical limits.
- Security Features: SMTP protocols improve the security of your email communications. Use its built-in encryption methods to protect sensitive information and build stakeholder trust.
Best fit
- 1 to 500 employees
- Martech, SaaS, E-commerce, Digital Marketing, and Nonprofit sectors
- Marketing Managers, E-commerce Managers, Digital Marketers, Content Creators, and Marketing Automation Specialists
- 50 to 500 employees
- Martech, Fintech, SaaS, E-commerce, and Digital Marketing
- Marketing Managers, IT Administrators, Email Marketing Specialists, Sales Executives, and Customer Success Managers
Reasons buyers look elsewhere
- Lacks advanced automation workflows — teams needing complex multi-step sequences often switch to HubSpot or ActiveCampaign
- Price-sensitive buyers find cheaper alternatives like Mailchimp or Klaviyo that cover basic email marketing at half the cost
- Limited onboarding and support — companies wanting hands-on training or dedicated account management choose platforms with stronger customer success teams
- Users may seek alternatives to SMTP due to deliverability issues, as emails can often be marked as spam or face filtering challenges, impacting communication effectiveness and business operations.
- Security concerns are a common reason for exploring alternatives; SMTP lacks advanced encryption and authentication measures, making it vulnerable to interception and unauthorized access.
- The increasing need for real-time communication drives users towards alternatives that offer instant messaging or collaboration features, which are not supported by traditional SMTP protocols.
Software Demo
Demo |
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How do Go Mail Merge, Retainful, Moosend and SMTP Compare on Features?
Total Features | 9 Features | 15 Features | 22 Features | 5 Features |
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Unique Features | No unique features | No unique features | No unique features | No unique features |
Get Quote | Get Quote |
Compare Go Mail Merge, Retainful, Moosend and SMTP on pricing
Review starting price, plan structure, and free-trial access side by side so you can see which option fits your budget and buying process.
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Go Mail Merge, Retainful, Moosend vs SMTP: Other Details
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Get help choosing | Get help choosing |
Go Mail Merge, Retainful, Moosend vs SMTP Security & Compliance
Certifications, data handling, and security controls for IT and compliance evaluators.
HIPAA | ✗ No | ✗ No |
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GDPR | — | — |
Data Encryption | — | — |
Data Residency | 🇺🇸 US | 🇺🇸 US |
Go Mail Merge vs Retainful vs Moosend User Reviews & Rating Comparison
User Ratings | 4.3 (based on 416 reviews) | |||
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Rating Distribution | ||||
Spotsaas Editor’s POV generated by AI | Buyer sentiment Buyer sentiment is positive across 3 reviews, with strong overall satisfaction. What buyers like
Common complaints
| Buyer sentiment Buyer sentiment is very strong across 2 reviews, with consistently positive feedback. What buyers like
Common complaints
| Buyer sentiment Buyer sentiment is positive across 416 reviews, with strong overall satisfaction. What buyers like
Common complaints
| Buyer sentiment Buyer sentiment is positive across 11 reviews, with strong overall satisfaction. What buyers like
Common complaints
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Pros and Cons |
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Positive Reviews | No reviews available for the product | No reviews available for the product | No reviews available for the product | No reviews available for the product |
| Negative Reviews | No reviews available for the product | No reviews available for the product | No reviews available for the product | No reviews available for the product |
Go Mail Merge, Retainful, Moosend and SMTP Customers
Customers |  IJSCIA  SOHO Ventures  Go Ideal Software |  GetGo store  Creo and Piece  alo goods | No Customers information available. | No Customers information available. |
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Media and Screenshots
Screenshots | No screenshots available. | No screenshots available. |
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Videos |  3 Videos |  1 Videos |
Alternatives to Go Mail Merge, Retainful, Moosend, SMTP
Alternatives |
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Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].
Frequently asked questions
- Which is better, Go Mail Merge or Retainful?
- Retainful edges out the other on user ratings (5.0 vs 4.2). That said, the best pick depends on your use case, so use the comparison tables above to evaluate each dimension.
- Do Go Mail Merge and Retainful offer a free trial?
- Retainful offers a free trial. Go Mail Merge does not.
- What is the starting price of Go Mail Merge vs Retainful?
- Go Mail Merge starts at $8.33 /Month. Retainful starts at $19 /Month.
- What are the top alternatives to Go Mail Merge?
- Top alternatives to Go Mail Merge include Moosend, SMTP, EmailOctopus, QuickMail, Workbooks GatorMail.
- What are the top alternatives to Retainful?
- Top alternatives to Retainful include Moosend, SMTP, EmailOctopus, Automizy, Mailercloud.