Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers email. Postfix is the default Mail Transfer Agent (MTA) in Ubuntu...Read more
Current Customer(s)
Market Share (Est.)
Ranking
The top three of Postfix’s competitors in the Hosted Email category are Microsoft Outlook with 40.31%, Microsoft Exchange Online with 39.61%, 1&1 Email with 4.04% market share.
Popular Comparisons
The top three of Postfix’s competitors in the Hosted Email category are Microsoft Outlook with 40.31%, Microsoft Exchange Online with 39.61%, 1&1 Email with 4.04% market share.
Postfix vs Microsoft Outlook
Postfix vs Microsoft Exchange Online
Postfix vs 1&1 Email
Postfix vs Strato
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Postfix vs Zoho Mail
Postfix vs One.com Email Hosting
Postfix vs Rackspace Email
Around the world in 2025, over 935 companies have started using Postfix as Hosted Email tool.
Customers | Employee Range | City | Region | Country | Social Links |
---|---|---|---|---|---|
Salesforce | 10,000+ | San Francisco | California | United States | |
Xerox | 10,000+ | Norwalk | Connecticut | United States | |
IBM | 10,000+ | Armonk | New York | United States | |
GLS | 10,000+ | Neuenstein | Baden-Wuerttemberg | Germany | |
Amazon Web Services | 10,000+ | Seattle | Washington | United States | |
Queensland Health | 10,000+ | Brisbane | Queensland | Australia | |
Investis Digital | 10,000+ | London | England | United Kingdom | |
NTT Data | 10,000+ | Plano | Texas | United States | |
Oracle Corporation | 10,000+ | Austin | Texas | United States | |
JLR | 10,000+ | Coventry | England | United Kingdom |
The top three products and services offering customers that use Postfix for Hosted Email are Cloud Services (29), Cybersecurity (27), Software Development (26).
Customers
The majority of Postfix's customers for the hosted-email category fall in the company size of 100 - 249 employees (168 companies), 20 - 49 employees (136 companies), 10,000+ employees (121 companies).
Employee Size
The top three geographies of Postfix for hosted-email are the United States with 334(50.84%), India with 91(13.85%), Canada with 41(6.24%) customers respectively.
Customers
Find answers to the most often asked questions by users.
Who are the top Postfix competitors?
Postfix’s Top competitors in the hosted-email category are Microsoft Outlook, Microsoft Exchange Online, 1&1 Email. You can view a full list of Postfix competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of Postfix and 40,000 other technologies on the internet. You can also compare Postfix and its feature with top competitors here : Postfix vs Microsoft Outlook Postfix vs Microsoft Exchange Online Postfix vs 1&1 Email.
What is Postfix customer distribution based on company size?
What is Postfix market share in the hosted-email?
What are the top countries that use Postfix?
What are the top industries that use Postfix?
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