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Postini

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Postini is a cloud computing service that provides spam and malware email filtering with optional email archiving service.

Email Security
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Market Share of Postini

Current Customer(s)

2200

Market Share (Est.)

0.29%

Ranking

#25

Top Competitors and Alternatives of Postini

The top three of Postini’s competitors in the Email Security category are Proofpoint with 43.86%, SendinBlue with 12.69%, MailChannels with 8.05% market share.

TechnologyDomainsMarket Share (Est.)Versus page
Proofpoint33069643.86%Postini vs Proofpoint
SendinBlue9570712.69%Postini vs SendinBlue
MailChannels606618.05%Postini vs MailChannels
Appriver411345.46%Postini vs Appriver
SpamExperts Email Archiving339794.51%Postini vs SpamExperts Email Archiving
Hornetsecurity Spamfilter325264.31%Postini vs Hornetsecurity Spamfilter
Campaign Monitor232073.08%Postini vs Campaign Monitor
Mimecast150792.00%Postini vs Mimecast
Mimecast Gateway148741.97%Postini vs Mimecast Gateway
Trend Micro ScanMail148411.97%Postini vs Trend Micro ScanMail
Symantec Email Security95411.27%Postini vs Symantec Email Security
Vade Secure83071.10%Postini vs Vade Secure
ArcTitan by TitanHQ63880.85%Postini vs ArcTitan by TitanHQ
Securence51290.68%Postini vs Securence
Zoho Campaigns48560.64%Postini vs Zoho Campaigns
Forcepoint Triton APX47030.62%Postini vs Forcepoint Triton APX
MX Guarddog35640.47%Postini vs MX Guarddog
Sophos Email Gateway29930.40%Postini vs Sophos Email Gateway
FireEye Email Security27630.37%Postini vs FireEye Email Security
Barracuda Email Security Gateway25460.34%Postini vs Barracuda Email Security Gateway
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Popular Comparisons

Top Competitors and Alternatives of Postini

The top three of Postini’s competitors in the Email Security category are Proofpoint with 43.86%, SendinBlue with 12.69%, MailChannels with 8.05% market share.

Postini vs Proofpoint

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Postini vs SendinBlue

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Postini vs MailChannels

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Postini vs Appriver

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Postini vs SpamExperts Email Archiving

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Postini vs Hornetsecurity Spamfilter

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Postini vs Campaign Monitor

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Postini vs Mimecast

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Customers of Postini

Around the world in 2025, over 2197 companies have started using Postini as Email Security tool.

CustomersEmployee RangeCityRegionCountrySocial Links
Xerox10,000+NorwalkConnecticutUnited States
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The Adecco Group10,000+ZurichZurichSwitzerland
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SAIC10,000+RestonVirginiaUnited States
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Ogilvy10,000+New York CityNew YorkUnited States
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RMIT School Of Education10,000+BundooraVictoriaAustralia
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TD Bank10,000+TorontoOntarioCanada
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Lexmark10,000+Lexington-FayetteKentuckyUnited States
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Coop Danmark10,000+AlbertslundCapital RegionDenmark
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LPL Financial10,000+San DiegoCaliforniaUnited States
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KPMG10,000+LondonEnglandUnited Kingdom
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Postini Customers by Products and Services

The top three products and services offering customers that use Postini for Email Security are Cloud Services (21), Managed Services (17), Cloud Computing (16).

Customers

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Postini Customers by Employee Size

The majority of Postini's customers for the email-security category fall in the company size of 0 - 9 employees (546 companies), 20 - 49 employees (392 companies), 100 - 249 employees (272 companies).

Employee Size

Postini Customers by Geography

The top three geographies of Postini for email-security are the United States with 1375(69.06%), Germany with 234(11.75%), United Kingdom with 123(6.18%) customers respectively.

Customers

Employees of Postini

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Also see other Products/Services by Postini in:

Email Security

FAQ

Find answers to the most often asked questions by users.

Who are the top Postini competitors?

Postini’s Top competitors in the email-security category are Proofpoint, SendinBlue, MailChannels. You can view a full list of Postini competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of Postini and 40,000 other technologies on the internet. You can also compare Postini and its feature with top competitors here : Postini vs Proofpoint Postini vs SendinBlue Postini vs MailChannels.

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What is Postini customer distribution based on company size?

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What is Postini market share in the email-security?

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What are the top countries that use Postini?

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What are the top industries that use Postini?

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