Products · category

Top Anti-Spam Software for Web-Based, Cloud, SaaS

6 anti-spam software ranked by rating, review volume and listing quality.

Between them, the 6 anti-spam software on this page cover allow / block list (5), spam filter (5), quarantine (5) and spam detection (4). 6 of them have written a profile you can read before you get in touch.

Filter by fitbudget, engagement, size and more

Barracuda Sentinel
Allow / Block List · Spam Filter · Spam Detection
Barracuda Sentinel is a cloud-based email security service from Barracuda Networks. It uses AI to protect firms from spear phishing, account takeover and business email compromise.
Write a review
Magic Spam
Allow / Block List · Spam Filter · Spam Detection
MagicSpam is anti-spam software that installs directly on a mail server or hosting control panel. It blocks spam at the connection stage, before the message is processed.
Write a review
CanIt-PRO
CanIt-PRO is an anti-spam product used by organisations with anything from a few dozen to over a hundred thousand email users. It filters mail on the way in and out of a company.
Write a review
ALTOSPAM
Allow / Block List · Spam Filter · Spam Detection
ALTOSPAM is a hosted email security service from OKTEY. It sits in front of a company's mail server and screens incoming messages before they arrive.
Write a review
SpamHero
Allow / Block List · Spam Filter · Email Archiving
SpamHero is a hosted email filtering service that screens mail for a whole domain before it reaches the mail server.
Write a review
SPAMfighter
Allow / Block List · Spam Filter · Spam Detection
SPAMfighter is a Danish-founded family of spam filters. A community model underpins it: when one user marks a new spam message, that block is shared with other users within…
Write a review

For vendors

Want to see your product here?

The order is earned on evidence: client reviews, vetting, awards and the facts a business states on its own website, which we read and date. Nobody can pay to move up. Add reviews or verified facts to your free profile to move up at the next edition; there are two ways to stand out now, and each one says what it is.

Not on TrustList yet? Add your product or claim its listing, free.

Get vetted

Free

We check your registration, your website and your clients
Approved listings show the Verified badge here and on their profile
It earns a rank number and counts towards the TrustList Score; renewed yearly

Apply for vetting How vetting works

Sponsor this ranking

Paid · always labelled

A Sponsored card above the ranked list, up to three per ranking
Marked Sponsored, and it never changes the order
Booked by the month; cancel any time

Sponsor this ranking See prices

Same subject

More anti-spam software rankings

Every other way we rank anti-spam software, by what they do and where they are.

All 7 rankings

Articles

Latest insights

The newest guides and analysis from TrustList Insights.

All articles

Artificial Intelligence - AI

28 Oct 2026 · TrustList Editorial

Gemini API now stores requests by default for new paid projects

From 26 October, new paid-tier projects log generateContent prompts and responses for up to 55 days unless they opt out. Existing projects…

eCommerce

28 Oct 2026 · TrustList Editorial

Shopify will delist apps on non-expiring tokens from 1 January 2027

Merchants see warnings from 15 January and the Admin API refuses the old tokens with HTTP 403 from 1 April 2027. A new client credentials…

Cybersecurity

28 Oct 2026 · TrustList Editorial

Cisco hardens Unified CM and Unity Connection, fixing flaws rated up to 9.8

One advisory groups the findings of an internal review into eight CVEs by weakness class, two rated 9.8. Release 15SU5 fixes them; release…

Browse

More categories

Jump to another ranked category.

All categories

Keep exploring

More on TrustList

Everything here links back to the same verified catalogue. Pick your next stop.