Postfix
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
Market Share of Postfix
Current Customer(s)
2391
Market Share (Est.)
0.32%
Ranking
#7
Top Competitors and Alternatives of Postfix
The top three of Postfix’s competitors in the Hosted Email category are Microsoft Outlook with 41.21%, Microsoft Exchange Online with 30.51%, SiteGround Email Hosting with 23.00% market share.
| Technology | Domains | Market Share (Est.) | Versus page |
|---|---|---|---|
| Microsoft Outlook | 307511 | 41.21% | Postfix vs Microsoft Outlook |
| Microsoft Exchange Online | 227628 | 30.51% | Postfix vs Microsoft Exchange Online |
| SiteGround Email Hosting | 171601 | 23.00% | Postfix vs SiteGround Email Hosting |
| Zoho Mail | 14131 | 1.89% | Postfix vs Zoho Mail |
| Rackspace Email | 4642 | 0.62% | Postfix vs Rackspace Email |
| Strato | 3143 | 0.42% | Postfix vs Strato |
| Network Solutions Email | 1836 | 0.25% | Postfix vs Network Solutions Email |
| One.com Email Hosting | 1370 | 0.18% | Postfix vs One.com Email Hosting |
| Namecheap Private Email | 1132 | 0.15% | Postfix vs Namecheap Private Email |
| OVH Webmail | 1064 | 0.14% | Postfix vs OVH Webmail |
| FastMail | 889 | 0.12% | Postfix vs FastMail |
| Infomaniak E-mail | 835 | 0.11% | Postfix vs Infomaniak E-mail |
| Yandex Mail | 785 | 0.11% | Postfix vs Yandex Mail |
| ProtonMail | 730 | 0.10% | Postfix vs ProtonMail |
| GandiMail | 587 | 0.08% | Postfix vs GandiMail |
| Email.biz | 498 | 0.07% | Postfix vs Email.biz |
| Aliyun Mail | 469 | 0.06% | Postfix vs Aliyun Mail |
| Soverin | 463 | 0.06% | Postfix vs Soverin |
| 263 Mail | 407 | 0.05% | Postfix vs 263 Mail |
| IceWarp | 406 | 0.05% | Postfix vs IceWarp |
Popular Comparisons
Top Competitors and Alternatives of Postfix
The top three of Postfix’s competitors in the Hosted Email category are Microsoft Outlook with 41.21%, Microsoft Exchange Online with 30.51%, SiteGround Email Hosting with 23.00% market share.
Postfix vs Microsoft Outlook
Postfix vs Microsoft Exchange Online
Postfix vs SiteGround Email Hosting
Postfix vs Zoho Mail
Postfix vs Rackspace Email
Postfix vs Strato
Postfix vs Network Solutions Email
Postfix vs One.com Email Hosting
Customers of Postfix
Around the world in 2026, over 2369 companies have started using Postfix as Hosted Email tool.
| Customers | Employee Range | City | Region | Country | Social Links |
|---|---|---|---|---|---|
| Savitribai Phule Pune University | 10,000+ | Pune | Maharashtra | India |     |
| KBZ Bank | 10,000+ | Yangon | Yangon | Myanmar | |
| Local Government Management Association At Indiana University | 10,000+ | Bloomington | Indiana | United States | |
| Youtube | 10,000+ | San Bruno | California | United States | |
| Northrop Grumman | 10,000+ | Falls Church | Virginia | United States | |
| HydroQuebec | 10,000+ | Montreal | Quebec | Canada | |
| Adobe | 10,000+ | San Jose | California | United States | |
| Bechtel Corporation | 10,000+ | Reston | Virginia | United States | |
| IDC | 10,000+ | Needham | Massachusetts | United States | |
| Inetum | 10,000+ | Saint-Ouen | Ile-de-France | France | |
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Postfix Customers by Products and Services
The top three products and services offering customers that use Postfix for Hosted Email are Cloud Services (77), Software Development (65), Managed Services (57).
Customers
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Postfix Customers by Employee Size
The majority of Postfix's customers for the hosted-email category fall in the company size of 100 - 249 employees (485 companies), 20 - 49 employees (387 companies), 10,000+ employees (343 companies).
Employee Size
Postfix Customers by Geography
The top three geographies of Postfix for hosted-email are the United States with 830(49.58%), India with 257(15.35%), Brazil with 140(8.36%) customers respectively.
Customers
Employees of Postfix
Also see other Products/Services by Postfix in:
FAQ
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, SiteGround Email Hosting. 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 SiteGround Email Hosting.
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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