Software Alternatives & Startups

ZeroSpam VS Sortfully

Compare ZeroSpam VS Sortfully and see what are their differences

ZeroSpam logo ZeroSpam

Cloud email security & anti-spam solution

Sortfully logo Sortfully

Auto-file your Outlook & Microsoft 365 mail by the organisation that sent it - once you've read it. Sortfully never reads your message bodies or attachments.
  • ZeroSpam Landing page
    Landing page //
    2023-10-14
  • Sortfully Dashboard
    Dashboard //
    2026-08-31
  • Sortfully Mappings View
    Mappings View //
    2026-08-31

Sortfully is an automatic filing service for Outlook and Microsoft 365. It moves each message into an Inbox subfolder, or tags it with a coloured category, based on the organisation that sent it. By default a message is only filed once you have read it, so new mail still lands in front of you and nothing disappears unseen. If you prefer, filing can happen instantly on delivery instead.

There is no AI in Sortfully. No model, no classifier, no LLM, and your mail is never sent to any AI service. Filing runs on deterministic rules you can read and edit: the sender's domain, your exact-match overrides, then Public Suffix List normalisation, so notifications.slack.com and hello@slack.com both land in one Slack folder, and .co.uk domains get correct names. You can group several domains into one folder, pin a domain to a folder you already have, exclude senders entirely, and choose move-or-tag per organisation. Every action is reversible.

Privacy is structural, not a promise. Sortfully never reads message bodies or attachments: the one code path allowed to call Microsoft Graph message endpoints uses a strict metadata field allow-list, and a CI gate fails the build if a content field ever appears. An optional detailed audit log records the subject line so you can see exactly what was filed; you can switch it off. Sortfully connects through delegated Microsoft Graph permissions only (Mail.ReadWrite, Mail.ReadWrite.Shared, MailboxSettings.Read), is a verified Microsoft publisher, and reads your existing inbox rules without ever modifying them. Tokens are encrypted at rest and you can disconnect at any time.

Optionally, a chunked, throttle-safe backlog cleanup sorts the mail you already have, with protected folders and a leave-recent-mail window so nothing current is touched.

Sortfully is built for Microsoft 365 first: individual mailboxes, shared mailboxes, and a Business plan with team management for firms. It is operated by a UK company, hosted in the EU.

ZeroSpam

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

Sortfully

$ Details
paid Free Trial £5 / Monthly
Platforms
Web SaaS Outlook
Release Date
2026 August
Startup details
Country
United Kingdom
City
London
Founder(s)
Adam Harman
Employees
1 - 9

ZeroSpam features and specs

  • High Accuracy
    ZeroSpam offers a high detection rate for spam, ensuring that most unsolicited emails are filtered out effectively.
  • Ease of Use
    The platform is user-friendly, making it easy for both administrators and users to configure and use the system.
  • Cloud-Based
    Being a cloud-based solution, ZeroSpam doesn't require any hardware or software installations, reducing maintenance efforts.
  • Real-Time Protection
    ZeroSpam provides real-time updates and protection against new and evolving threats.
  • Customer Support
    The service offers robust customer support to help resolve any issues or questions that may arise.

Possible disadvantages of ZeroSpam

  • Costs
    ZeroSpam may be more expensive compared to some competitors, especially for small businesses with limited budgets.
  • False Positives
    Despite high accuracy, there may still be occasional false positives, leading to legitimate emails being marked as spam.
  • Dependence on Internet Connection
    As a cloud-based service, its effectiveness depends on having a reliable internet connection.
  • Limited Customization
    Some users might find the customization options limited compared to other solutions that offer more tailored spam filtering rules.
  • Learning Curve
    While generally user-friendly, there might be a learning curve for users who are not familiar with spam filtering technologies.

Sortfully features and specs

  • Filing by sender organisation
    Mail is filed by the organisation that sent it, so every alias and subdomain from a company lands in one folder.
  • Move or tag per organisation
    Each organisation can be moved to an Inbox subfolder or tagged in place with a coloured category.
  • File after read
    By default nothing moves until a message has been read, so new mail never disappears unseen; instant filing on delivery is optional.
  • No AI
    No model, no classifier, no LLM; filing runs on deterministic rules you can read and edit, and mail is never sent to any AI service.
  • Content-Blind
    Message bodies and attachments are never read, enforced by a code-level allow-list and a CI gate, not just a policy.
  • Public Suffix list
    Public Suffix List normalisation gives correct names for .co.uk, .energy and hundreds of other endings.
  • Overrides and exclusions
    Group several domains into one folder, pin a domain to an existing folder, or exclude senders entirely; your rules always win.
  • Backlog cleanup
    Sorts the mail you already have in chunked, rate-limited passes, with protected folders and an option to leave recent mail in place.
  • Undo anything
    Every filing action is recorded and reversible from the dashboard or audit log.
  • Audit Log
    A record of every filing with sender, destination and mode; a detailed option records the subject line and can be switched off.
  • Shared Mailboxes
    Files shared mailboxes a delegate has access to, alongside personal ones.
  • Team Management
    The Business plan adds team management for firms running multiple mailboxes with multiple users.

Analysis of ZeroSpam

Overall verdict

  • ZeroSpam is a reliable and efficient solution for email security, particularly for businesses seeking to enhance their protection against spam and related threats.

Why this product is good

  • ZeroSpam is considered effective due to its comprehensive spam filtering capabilities that protect against a wide range of threats, including phishing, malware, and ransomware. It uses advanced algorithms and real-time threat intelligence to identify and block unwanted emails. Additionally, ZeroSpam is known for its user-friendly interface and excellent customer support.

Recommended for

  • Small to medium-sized businesses looking for robust email security
  • Organizations seeking to reduce the risk of email-borne threats
  • IT departments that require flexible and scalable spam protection solutions

ZeroSpam videos

Zerospam - We engineer Confidence

Sortfully videos

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Category Popularity

0-100% (relative to ZeroSpam and Sortfully)
Email Management
89 89%
11% 11
Inbox Management
0 0%
100% 100
Email Automation
89 89%
11% 11
Tool
100 100%
0% 0

Questions & Answers

As answered by people managing ZeroSpam and Sortfully.

Why should a person choose your product over its competitors?

Sortfully's answer:

Most email organisers ask you to trust them: an AI classifier scores your mail and a privacy policy promises restraint. Sortfully is built so you don't have to take its word for it. It cannot read message bodies or attachments; the restriction is a code-level allow-list backed by a CI gate that fails the build, and filing runs on deterministic rules you can read and override. It is also the only one of its kind built for Outlook and Microsoft 365 first: delegated Microsoft Graph permissions from a verified Microsoft publisher, shared mailbox support, and read-only respect for your existing inbox rules, where SaneBox, Clean Email and Mailstrom treat Outlook as a second platform. And it behaves differently: mail is filed by sender organisation, so every alias and subdomain lands in one folder, and by default only after you have read it, so nothing disappears unseen and everything can be undone.

What's the story behind your product?

Sortfully's answer:

Sortfully was built by a UK founder who watched Outlook rules fail at scale: Exchange caps rules at 256 KB, one rule per sender domain does not scale, and rules only run while Outlook is open. The alternatives all wanted AI access to mail content, which is exactly what regulated firms cannot accept. So Sortfully does the opposite: deterministic filing by sender organisation, with a code-enforced guarantee that message bodies and attachments are never read. It launched in August 2026, operated by a UK company with EU hosting.

What makes your product unique?

Sortfully's answer:

Sortfully contains no AI at all. Filing runs on deterministic rules you can read and edit: the sender's domain, your overrides, then Public Suffix List normalisation. And the privacy guarantee is structural rather than promised: the one code path allowed to call Microsoft Graph message endpoints uses a strict metadata allow-list, and a CI gate fails the build if a content field ever appears. Message bodies and attachments are never read.

How would you describe the primary audience of your product?

Sortfully's answer:

Businesses and normal consumers can both benefit from Sortfully. Businesses on Microsoft 365, mainly professional services firms of 10 to 200 mailboxes (accountants, solicitors, surveyors, architects) and the IT admins or MSPs who manage their tenants. It also suits compliance-conscious firms that have decided against AI email tools, and individual Outlook power users.

Which are the primary technologies used for building your product?

Sortfully's answer:

Laravel (PHP), PostgreSQL and Redis on the backend; React with TypeScript and Inertia on the frontend; the Microsoft Graph API with delegated permissions for all mailbox access. Hosted in the EU.

User comments

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What are some alternatives?

When comparing ZeroSpam and Sortfully, you can also consider the following products

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

Sanebox - SaneBox is a cloud-based service that allows users to filter and manage their emails.

Clean Email - Clean Email is an online service that empowers you to take control of your mailbox.

MailCleaner - Cloud & on-premise anti spam software for businesses

Mailstrom - The smarter, faster way to clean out your inbox. Power through thousands of messages in just a few clicks. Free Trial! Website. JOBS.

Vade Secure - Email security to protect against email-borne phishing, spear phishing, malware, and ransomware. Email security and management based on artificial intelligence.