Mimecast Alternatives

SpamHero is a professional spam filtering accuracy while lowering the cost to domain and business owners.

Comprehensive Email Protection. 99.99% Spam Detection. Blocks phishing, viruses, malware and other email threats.

Open Source Free Trial $0.81 / Monthly (Per User)

The #1 email warming service to improve your deliverability by generating realistic and meaningful engagement to your emails. Easy-to-use solution to help you land in the main inbox instead of the spam folder.

Visit website paid $19.5 / Monthly (Pro)

Use this program to "Unspam" your mailbox(es).

Open Source

SpamExperts applies its proprietary smart technologies to eliminate spam, virus and malware mail before it reaches your network.

The outbound email filtering prevents spam from being unknowingly sent out of your network through a compromised account or script.

Protect mail server against spam, viruses and malware with Proxmox Mail Gateway security for businesses, government, education and non-profit organizations.

Kundenserver is an RBL-style host verification service to secure servers from spam emails.

Hornet security Spam filter is a spam filter service created to help businesses detect and protect mailboxes from spam, malware and viruses using a variety of features such as spam recognition and virus detection, adjustable content filters, and sta…

Commvault is a site search platform that helps legal or compliance officers and corresponding end users to explore and retrieve files and email across different applications, storage devices and computers.

SPAMfighter and Microsoft have built the strongest and most effective anti spam filter for Outlook, Windows Live Mail, Outlook Express & Thunderbird

Rspamd is an advanced spam filtering system that allows evaluation of messages by a number of rules...

Proofpoint provides cloud-based email security, e-discovery and compliance solutions for companies to protect sensitive business data.

MagicSpam is an anti-spam product designed for specific email servers to block spam and junk mail.