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)
83
Market Share (Est.)
0.96%
Ranking
#12
Top Competitors and Alternatives of SMTP.com
The top three of SMTP.com’s competitors in the Email Deliverability category are SocketLabs with 46.81%, MasterBase with 12.08%, Litmus with 11.98% market share.
| Technology | Domains | Market Share (Est.) | Versus page |
|---|---|---|---|
| SocketLabs | 4061 | 46.81% | SMTP.com vs SocketLabs |
| MasterBase | 1048 | 12.08% | SMTP.com vs MasterBase |
| Litmus | 1039 | 11.98% | SMTP.com vs Litmus |
| SquirrelMail | 975 | 11.24% | SMTP.com vs SquirrelMail |
| Pepipost | 384 | 4.43% | SMTP.com vs Pepipost |
| Email On Acid | 200 | 2.31% | SMTP.com vs Email On Acid |
| WhatCounts | 181 | 2.09% | SMTP.com vs WhatCounts |
| PowerMTA | 151 | 1.74% | SMTP.com vs PowerMTA |
| SparkPost | 123 | 1.42% | SMTP.com vs SparkPost |
| Postmark | 99 | 1.14% | SMTP.com vs Postmark |
| SMTP2GO | 94 | 1.08% | SMTP.com vs SMTP2GO |
| Mailtrap | 48 | 0.55% | SMTP.com vs Mailtrap |
| 250ok | 38 | 0.44% | SMTP.com vs 250ok |
| DataValidation | 34 | 0.39% | SMTP.com vs DataValidation |
| BriteVerify | 20 | 0.23% | SMTP.com vs BriteVerify |
| CritSend | 17 | 0.20% | SMTP.com vs CritSend |
| eDataSource | 14 | 0.16% | SMTP.com vs eDataSource |
| EmailSuccess | 12 | 0.14% | SMTP.com vs EmailSuccess |
| EmailDelivered | 12 | 0.14% | SMTP.com vs EmailDelivered |
| InboxFirst | 8 | 0.09% | SMTP.com vs InboxFirst |
Popular Comparisons
Top Competitors and Alternatives of SMTP.com
The top three of SMTP.com’s competitors in the Email Deliverability category are SocketLabs with 46.81%, MasterBase with 12.08%, Litmus with 11.98% market share.
SMTP.com vs SocketLabs
SMTP.com vs MasterBase
SMTP.com vs Litmus
SMTP.com vs SquirrelMail
SMTP.com vs Pepipost
SMTP.com vs Email On Acid
SMTP.com vs WhatCounts
SMTP.com vs PowerMTA
Customers of SMTP.com
Around the world in 2025, over 83 companies have started using SMTP.com as Email Deliverability tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| Vodafone | 10,000+ | Newbury | England | United Kingdom |     |
| Amadeus Hospitality | 10,000+ | Portsmouth | New Hampshire | United States | |
| BlackBerry | 10,000+ | Waterloo | Ontario | Canada | |
| U.S. Air Force | 10,000+ | San Antonio | Texas | United States | |
| Wipro | 10,000+ | Bengaluru | Karnataka | India | |
| General Electric | 10,000+ | Boston | Massachusetts | United States | |
| Bank Of Montreal | 10,000+ | Toronto | Ontario | Canada | |
| ANZ | 10,000+ | Melbourne | Victoria | Australia | |
| Emory University | 10,000+ | Atlanta | Georgia | United States | |
| Proofpoint | 1,000 - 4,999 | Sunnyvale | California | United States | |
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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 Email Marketing (4), Digital Marketing (3), Financial Services (3).
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 20 - 49 employees (23 companies), 0 - 9 employees (15 companies), 10,000+ employees (11 companies).
Employee Size
SMTP.com Customers by Geography
The top three geographies of SMTP.com for email-deliverability are the United States with 53(67.95%), United Kingdom with 6(7.69%), Canada with 5(6.41%) 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 SocketLabs, MasterBase, Litmus. 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 SocketLabs SMTP.com vs MasterBase SMTP.com vs Litmus.
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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