Software Alternatives & Startups

ProtonMail VS Sortfully

Compare ProtonMail VS Sortfully and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

ProtonMail logo ProtonMail

Secure email with absolutely no compromises. Get your free encrypted email account today.

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.
  • ProtonMail Landing page
    Landing page //
    2023-10-15
  • 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.

ProtonMail

$ Details
freemium €5 / Monthly (user - 5 GB)
Platforms
-
Release Date
-
Startup details
Country
Switzerland
City
Geneva
Employees
50 - 99

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

ProtonMail features and specs

  • End-to-End Encryption
    ProtonMail uses robust end-to-end encryption, ensuring that only the sender and the recipient can read the emails. This enhances the security and privacy of your communications.
  • Zero Access to User Data
    ProtonMail does not have access to user data or emails. This means that even ProtonMail cannot read your emails, providing an additional layer of privacy.
  • Swiss Privacy Laws
    Based in Switzerland, ProtonMail benefits from stringent Swiss privacy laws, which are some of the strongest in the world. This offers users greater legal protection against mass surveillance.
  • Open Source
    ProtonMail's encryption algorithms are open source, which means their code can be reviewed and audited by anyone, promoting transparency and trust.
  • User-Friendly Interface
    ProtonMail offers an intuitive and clean user interface, making it easy for users to manage their emails efficiently.

Possible disadvantages of ProtonMail

  • Limited Free Storage
    The free version of ProtonMail offers only 500 MB of storage, which might be insufficient for users who need to store a large number of emails.
  • Paid Plans
    Advanced features and additional storage require a paid subscription, which may be a hassle for users looking for a completely free service.
  • Search Limitations
    Due to end-to-end encryption, the search functionality in ProtonMail is limited compared to other email services, as the search can only be performed on email subjects, not the content.
  • Compatibility Issues
    ProtonMail's encryption might not be fully compatible with other email services, potentially causing issues with sending and receiving encrypted messages.
  • Learning Curve
    New users who are unfamiliar with encryption concepts might find it slightly challenging to understand and use all of ProtonMail’s security features effectively.

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 ProtonMail

Overall verdict

  • ProtonMail is generally considered to be a good email service, especially for users who prioritize privacy and security. Its user-friendly interface and strong encryption make it a reliable choice for personal and professional communication.

Why this product is good

  • ProtonMail is known for its strong emphasis on privacy and security. It offers end-to-end encryption, ensuring that your emails are secure and can only be read by the intended recipient. Additionally, the service is based in Switzerland, which has strong privacy laws. ProtonMail is also open-source, allowing for transparency and community trust in its security measures.

Recommended for

  • Individuals who prioritize email privacy and security
  • Journalists, activists, and professionals handling sensitive information
  • Users looking for an ad-free email experience
  • Anyone seeking a secure communication tool with a simple, intuitive interface

ProtonMail videos

ProtonMail Review - Good or Not?

More videos:

  • Review - ProtonMail Review
  • Review - Top 4 Email Services BETTER than Protonmail!

Sortfully videos

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Category Popularity

0-100% (relative to ProtonMail and Sortfully)
Email
100 100%
0% 0
Inbox Management
0 0%
100% 100
Email Clients
100 100%
0% 0
Email Automation
0 0%
100% 100

Questions & Answers

As answered by people managing ProtonMail 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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Reviews

These are some of the external sources and on-site user reviews we've used to compare ProtonMail and Sortfully

ProtonMail Reviews

  1. Dennis
    · Commercial Director at SpeechKit ·
    A great product made by a great team

    Protonmail is the best secure email solution period, other products in the suite such as ProtonVPN and hopefully soon Drive and Calendar will finally make it the perfect Gsuite alternative.

    Pros:    Encryption|Easy to use|Excellent features|Easy integration
    Cons:    None

5 Of The Best Alternatives To Proton Mail
Email providers like Gmail and Yahoo offer lots of great features for free. However, all those freebies come at a cost, as these popular email services track your activity and target you with ads. In contrast, Protonmail uses end-to-end encryption and doesn't collect any data linked to a user's identity, and the basic version is free. But if you like it, you'll want to...
The Top 4 ProtonMail Alternatives
While ProtonMail is generally received in a positive light, it isn’t without its flaws. It’s been subjected to DDoS attacks that have made its services inaccessible to some users. ProtonMail is also not well suited to high-volume use and its subject lines are not encrypted. To some, these issues may be trivial and others may wish to see what else may be available to them.
Best ProtonMail Alternatives for Secure Communications
While ProtonMail has set a high standard in the realm of secure email services, there are several alternatives out there that offer unique features and capabilities. Whether you’re an individual looking for a secure email client or a business in need of a comprehensive security solution, there’s an alternative to ProtonMail that can meet your needs. Remember, the best secure...
Source: canarymail.io
10 Best Alternatives to Microsoft Outlook to Try in 2023
It's hard to find a more trustworthy email service provider than ProtonMail. It's built for people who want to be sure that no one is accessing their data, and that's where it clearly comes out ahead compared to Outlook, which is owned by Microsoft. But when choosing ProtonMail, you may miss some of the key features and integrations offered by Microsoft and its line of apps.
Source: mysignature.io
11 Top Outlook Alternatives to Try
With ProtonMail, your email is even protected from ProtonMail. Your data is stored using zero-access encryption, so ProtonMail itself doesn’t know your password and can’t decrypt your emails.
Source: kinsta.com

Sortfully Reviews

We have no reviews of Sortfully yet.
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Social recommendations and mentions

Based on our record, ProtonMail seems to be more popular. It has been mentiond 414 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

ProtonMail mentions (414)

  • Email username
    You might want to consider getting a domain name of your own and then get email hosting which will allow you to set up your email in the way you want. If you don't want to have to manage and pay for domain name and email hosting, you may try premium email services like Space Email, Proton Mail etc. With then you'll definitely be able to get a username/email address of your choice. Source: almost 3 years ago
  • How to Force Current Session Logout - Answered
    I closed all Proton Mail tabs and navigated to protonmail.com and a cleared out login area was shown. Without checking the "keep me logged in", I entered my credentials and was prompted for my 2FA info. I entered that and it worked. Source: almost 3 years ago
  • help
    Can I add my gmail account to my proton mail account so I can send emails and choose betwen my gmail.com email or my protonmail.com email account? Im not talking about the easy switch feature btw. Source: almost 3 years ago
  • Ask HN: Gmail Alternatives
    I hear ProtonMail[1] is good, especially for your needs. [1]: https://protonmail.com/. - Source: Hacker News / about 3 years ago
  • Which do you use? @protonmail.com, @proton.me or @pm.me?
    Protonmail.com for my primary, though really, simplelogin.com when I sign up at a site. Source: about 3 years ago
View more

Sortfully mentions (0)

We have not tracked any mentions of Sortfully yet. Tracking of Sortfully recommendations started around Aug 2026.

What are some alternatives?

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

Tutanota - Get your encrypted mailbox for free.

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

Zoho Mail - Zoho Mail is a secure, encrypted, and enterprise-ready email solution, a suite of apps tailor-made for your organization's needs.

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

Gmail - Gmail is available across all your devices Android, iOS, and desktop devices. Sort, collaborate or call a friend without leaving your inbox.

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