SMTP.com
SMTP is a cloud-based email delivery service providing hosted email sending solutions and email marketing services
Market Share of SMTP.com
Current Customer(s)
80
Market Share (Est.)
1.01%
Ranking
#16
Top Competitors and Alternatives of SMTP.com
The top three of SMTP.com’s competitors in the Email Deliverability category are Litmus with 34.97%, SquirrelMail with 13.16%, SocketLabs with 9.59% market share.
| Technology | Domains | Market Share (Est.) | Versus page |
|---|---|---|---|
| Litmus | 2771 | 34.97% | SMTP.com vs Litmus |
| SquirrelMail | 1043 | 13.16% | SMTP.com vs SquirrelMail |
| SocketLabs | 760 | 9.59% | SMTP.com vs SocketLabs |
| Email On Acid | 594 | 7.50% | SMTP.com vs Email On Acid |
| SparkPost | 412 | 5.20% | SMTP.com vs SparkPost |
| PowerMTA | 296 | 3.74% | SMTP.com vs PowerMTA |
| WhatCounts | 252 | 3.18% | SMTP.com vs WhatCounts |
| DataValidation | 247 | 3.12% | SMTP.com vs DataValidation |
| MasterBase | 247 | 3.12% | SMTP.com vs MasterBase |
| Postmark | 230 | 2.90% | SMTP.com vs Postmark |
| Mailtrap | 180 | 2.27% | SMTP.com vs Mailtrap |
| Pepipost | 170 | 2.15% | SMTP.com vs Pepipost |
| SMTP2GO | 147 | 1.85% | SMTP.com vs SMTP2GO |
| Netcore Email API | 122 | 1.54% | SMTP.com vs Netcore Email API |
| 250ok | 101 | 1.27% | SMTP.com vs 250ok |
| BriteVerify | 61 | 0.77% | SMTP.com vs BriteVerify |
| turboSMTP | 60 | 0.76% | SMTP.com vs turboSMTP |
| eDataSource | 35 | 0.44% | SMTP.com vs eDataSource |
| EmailDelivered | 19 | 0.24% | SMTP.com vs EmailDelivered |
| CritSend | 18 | 0.23% | SMTP.com vs CritSend |
Popular Comparisons
Top Competitors and Alternatives of SMTP.com
The top three of SMTP.com’s competitors in the Email Deliverability category are Litmus with 34.97%, SquirrelMail with 13.16%, SocketLabs with 9.59% market share.
SMTP.com vs Litmus
SMTP.com vs SquirrelMail
SMTP.com vs SocketLabs
SMTP.com vs Email On Acid
SMTP.com vs SparkPost
SMTP.com vs PowerMTA
SMTP.com vs WhatCounts
SMTP.com vs DataValidation
Customers of SMTP.com
Around the world in 2026, over 79 companies have started using SMTP.com as Email Deliverability tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| Northrop Grumman | 10,000+ | Falls Church | Virginia | United States |     |
| T-Mobile | 10,000+ | Bellevue | Washington | United States | |
| Providence | 10,000+ | Seattle | Washington | United States | |
| Allied Bank Limited | 10,000+ | Lahore | Punjab | Pakistan | |
| Tech Mahindra | 10,000+ | Pune | Maharashtra | India | |
| Thales | 10,000+ | Meudon | Ile-de-France | France | |
| Concentrix | 10,000+ | Newark | California | United States | |
| Tata Consultancy Services | 10,000+ | Mumbai | Maharashtra | India | |
| VSP Vision | 10,000+ | Rancho Cordova | California | United States | |
| Government Of Canada | 10,000+ | Ottawa | Ontario | Canada | |
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SMTP.com Customers by Products and Services
The top three products and services offering customers that use SMTP.com for Email Deliverability are Cloud Services (9), Cybersecurity (7), Internet Services (6).
Customers
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SMTP.com Customers by Employee Size
The majority of SMTP.com's customers for the email-deliverability category fall in the company size of 10,000+ employees (31 companies), 1,000 - 4,999 employees (14 companies), 100 - 249 employees (10 companies).
Employee Size
SMTP.com Customers by Geography
The top three geographies of SMTP.com for email-deliverability are the United States with 45(60.81%), India with 7(9.46%), United Kingdom with 5(6.76%) customers respectively.
Customers
Employees of SMTP.com
Also see other Products/Services by SMTP.com in:
FAQ
Find answers to the most often asked questions by users.
Who are the top SMTP.com competitors?
SMTP.com’s Top competitors in the email-deliverability category are Litmus, SquirrelMail, SocketLabs. You can view a full list of SMTP.com competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of SMTP.com and 40,000 other technologies on the internet. You can also compare SMTP.com and its feature with top competitors here : SMTP.com vs Litmus SMTP.com vs SquirrelMail SMTP.com vs SocketLabs.
What is SMTP.com customer distribution based on company size?
What is SMTP.com market share in the email-deliverability?
What are the top countries that use SMTP.com?
What are the top industries that use SMTP.com?
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