Sentrya Alternatives: Top 10 Email Anti-spam Software in 2025

This always-expanding portfolio of security & identity products can help your enterprise meet policy, regulatory, and business objectives.

Introducing Campaign Cleaner: the essential tool for every professional who needs to protect their emails from annoying spam filters. Campaign Cleaner is designed to effectively detect and eliminate spam trigger words, ensuring that their message gets delivered to the inbox, not the spam folder. Their proprietary algorithm analyses every email they send, ensuring that the content is free of any phrases, links, or other elements that could be marked as suspicious. Campaign Cleaner guarantees your email reaches the recipient without any interference. Don’t risk their emails being marked as spam and losing the opportunity to connect with important contacts - use Campaign Cleaner to guarantee their emails reach their intended destination.

MailHarderner is a domain security tool that protects domains against malware, phishing attacks, fraud, spam, and more. This improves the delivery rate of emails that are sent through the domains as they are more likely to be trustworthy and less likely to end up in the spam folder. The tool can be set up within 5 minutes and needs no software installation. It then churns out regular reports about emails that are sent through the domain name. Users can also set up the domain settings accordingly. It is packed with an email monitoring tool that provides information about all emails such as the ones sent from the user’s email server, third party tools, such as marketing platforms, billing systems, reporting tools, and even unauthorised senders. The TLS Reporting feature gives insights of any associated TLS failures that are encountered by email servers that are trying to deliver emails to the user’s domain.