Postini Replacement Options Explained

If you're looking for a Postini replacement, you have several options to consider.

Google Apps for Business was one of the first alternatives to Postini, offering a suite of productivity tools and email security features.

Microsoft Office 365 is another popular choice, providing a range of cloud-based services, including email security and archiving.

Symantec.cloud, now known as MessageLabs, offers cloud-based email security and archiving solutions that can replace Postini's features.

Take a look at this: Google Corporate Email Domain

Many IT teams are considering which Postini alternative solution to invest in after Google's Postini email security service ended.

Google Apps, Microsoft Exchange, and Microsoft 365 email hosting all provide options for a Postini replacement.

No single solution can offer the comprehensive features for email security, archiving, and continuity that organizations need to protect and manage email.

A growing number of IT teams are turning to email services from Mimecast, which provides a cloud-based, all-in-one email management solution.

Mimecast simplifies your Postini migration or Office 365 email migration while delivering all the capabilities and functionality you need from your email management system.

Recommended read: Microsoft Exchange Hosted Services

Google acquired Postini for $625 million in 2007, and the service currently has about 26 million users.

The web giant announced that it will shut down Postini, shifting users over to Google Apps next year.

Google has spent the last year building Postini's features into Google Apps for Business and Google Apps Vault.

The transition to Google Apps will occur over the course of 2013, with customers receiving information about the transition process at least 60 days before their migration is scheduled to begin.

Customers who do not wish to transition to Google Apps will see their Postini service terminated at the end of their contract.

Google also announced that it would discontinue Google Postini Services on September 2, 2011.

The transition to Google Apps was handled poorly by Google, resulting in several companies experiencing bounced emails due to not following the required steps to get on-boarded to G-Suite properly.

Google increased the price of Postini six-fold in December, which was not well communicated to users.

Here are some key dates related to the retirement of Postini:

Google announced it would discontinue Google Postini Services on September 2, 2011.

This marked the end of Google's Postini email security service, leaving many IT teams in need of a replacement solution.

Google Apps, Microsoft Exchange, and Microsoft 365 email hosting all provide options for a Postini replacement, but Mimecast is emerging as a popular alternative.

Mimecast offers a cloud-based, all-in-one email management solution that can simplify your Postini migration or Office 365 email migration.

Here's an interesting read: Email Filtering

Postini's security features help protect against spam, viruses, and other types of malware.

The system uses advanced filtering technology to scan emails for suspicious content, blocking over 90% of spam messages.

This level of protection is crucial for businesses, as spam can lead to significant productivity losses and compromised data security.

Postini's compliance features also ensure that email communications meet regulatory requirements, such as the Health Insurance Portability and Accountability Act (HIPAA).

A different take: Challenge–response Spam Filtering

Research containing Postini is a notable mention in the security and compliance landscape. CB Insights Intelligence Analysts have mentioned Postini in 1 CB Insights research brief, most recently on Mar 20, 2025.

Curious to learn more? Check out: Anti-Spam Research Group

Google acquired Postini, a company that sold email filtering technology, for $625M in cash in 2007.

Postini was a popular choice for small companies due to its affordable price of $1/user/month, but its quality and usability declined over time.

Google absorbed Postini into Google Apps and eventually shut down the service, forcing users to migrate to G-Suite.

The transition was handled poorly, with many users experiencing bounced emails and increased prices, six-fold in December.

The support available to users was also subpar, often involving chat sessions with remote agents who referred to standard articles that didn't answer questions.

One user's experience with Postini's decline was particularly frustrating, with a one-hour chat session that went nowhere and ultimately led them to look for alternatives.

They found a better solution with Vircom's modusCloud product, which is a white-labeled version of Proofpoint, the gold standard for email filtering.

The user was able to get a better price point with more features and access to Proofpoint's global threat protection scheme, used by many big companies.

Explore further: Sieve (mail Filtering Language)