Award-winning technology

The Bitdefender Antispam SDK (software development kit) is an award-winning technology that enables security vendors, telecom companies and email service providers to secure the email flow against cyber threats.

  • 33 consecutive VBSpam+ awards
  • 0 false positives
  • Over 99.9% constant detection rate

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Proprietary technology

Proprietary technology with patented algorithms and detection methods


Commercially proven for more than 12 years with large OEM Partners integrating the technology into their security products.

Supports multiple operating systems

Supports multiple operating systems and CPU architectures

Full cloud email security

Full cloud email security solution up to date 24x7x365

Fully customizable SDK,

Fully customizable SDK, providing different integration options, including emulating SpamAssassin protocol

Multi-level independent

Multi-level independent filters ranging from IP & URL reputation to malicious attachments, images and cryptocurrencies addresses to fight all types of spam, phishing, malspam

Antispam Technology

More Than Antispam Technology

The Bitdefender Antispam SDK combines multiple spam, phishing and malware detection technologies to identify and stop cyberthreats from the email flow. Emails are captured and pass through a wide range of blacklists, reputation systems and content filtering technologies to identify spam, phishing, extortion scams and malspam attacks and to ensure full email protection for internal users and customers.

Privacy-Oriented Approach

Privacy-Oriented Approach

When developing detection filters, protecting privacy is a top priority for us. The solution uses anonymized pieces of information for detection purposes, which ensures a high level of privacy for email users. This process is done on your premise for full control and compliance.

Continuous Development Strategy

Continuous Development Strategy

Bitdefender has a dedicated R&D team, continuously monitoring the threat landscape and constantly updating the solution with innovative cloud detection technologies and filters to ensure even the latest threats are discovered.

Securing Emails

Securing Emails In All Languages

The solution’s detection rate is not influenced by language. The Bitdefender Antispam SDK works with information that does not rely on language or regional attributes; hence it provides the same detection level for users globally.