Spam filters

The purpose of a spam filter is to prevent unsolicited or spam email from reaching the inbox. Spam filters analyze various criteria gathered from the email to determine whether it is spam. Mailbox providers then create a spam score based on the cr...

The following is a summary of best practices for sending email to Cisco Secure Email users. Cisco Secure Email uses a combination of IronPort and Cisco Intelligent Multi-Scan filtering for spam, malware, and phishing protection. However, Cisco Sec...

Vade Secure is an international email security company that helps protect businesses from cybersecurity threats including spam, phishing, and malware. Global ISPs and enterprises use Vade Secure's AI-based email filter and advanced anti-spam analy...

Mimecast is a leading email security vendor with products spanning email and data security. Their products are used by more than 30000 businesses worldwide. Their Email Security With Targeted Threat Protection product helps protect businesses from...

Barracuda is a leading email and web security vendor with products spanning email, network and application security, and data protection. Their products are used by more than 150000 businesses worldwide. Their Email Security Gateway product helps ...

Proofpoint is a leading cybersecurity vendor with products spanning email, social, mobile applications, and data security. Their products are used by thousands of businesses worldwide. Their Email Protection Product Suite protects end users from s...

SpamAssassin is a widely-used mail filter designed to identify spam by testing a number of email components: Email headers Authentication Subject line Body content and formatting Markup Character sets Message encoding Sending IP SpamAssassin run...

The Anubis spam filter uses several types of filters in combination: Content-based fingerprinting IP-based reputation IP-based blocklist Malware detection Infrastructure  Region Europe, Middle East and Africa (EMEA) Website Anubis Ne...

Troubleshooting B2B deliverability can be a challenge. Many companies deploy third-party spam filters (e.g. Mimecast) in addition to their email client (e.g. Microsoft Office 365) to protect their users from spam and phishing attacks. Because thes...

The mailbox providers that use Cloudmark for spam filtering are listed in the table below. This list was gathered from research and is not an exhaustive list. Mailbox provider Country Singtel/Optus Online Australia Telstra Corpor...