scorprox.com and scorpion-proxy.com both reach this same site.
Scorpion Proxy · the mail abstraction layer

One front door for every mail server you run.

Scorpion sits between your users' mail clients and your server backends. Move users between servers without them noticing, give old systems modern TLS and IPv6, and check every link again at the moment it is clicked. It runs on your own hardware, from a new enterprise server to a Raspberry Pi.

TLS 1.3 to every client · IPv6 for any backend · Click-time URL protection
TLS 1.3
to your clients, even if the backend speaks TLS 1.0 or plain text
IPv6
for systems that are not IPv6 or dual-stack aware
1 entry
point: route clients to the right backend by name or by login
AWS to Pi
runs on anything, new or old, big or small: from enterprise to Raspberry Pi and Solaris 10

01What Scorpion does

Abstraction

Clients never see the backend

Mail clients talk to Scorpion, not to your servers. Migrate mailboxes from one server to another and the client neither knows nor cares.

Routing

Route by name or by login

One process, one endpoint, many backends. Route by the name the client connects to (TLS SNI, or single-entry-point names like mail.example.com and mail.other-example.com), or by the login itself, looked up by user and domain in MySQL, PostgreSQL or LDAP.

IPv6

IPv6 without rebuilds

Give IPv6 access to systems that are not IPv6 or dual-stack aware, without touching them.

Modern TLS

The latest TLS for everyone

The newest TLS protocols and options for all servers and types, regardless of backend support. A backend stuck on TLS 1.0, or on plain text, still gives its clients TLS 1.3.

Certificates

Let's Encrypt, automated

Certificates for client access are issued and renewed for you, in one place instead of on every backend.

Links

Click-time URL protection

Links are checked when they are clicked, by MISUIC, locally and optionally remotely. Covers IMAP and POP3 access, and webmail on some systems.

02Protection at the click

A link that was harmless when the message arrived can be weaponised hours later. Scorpion asks again when the recipient actually clicks, using MISUIC, the URL intent classifier from the same ecosystem, which judges what a link is really for and whether its domain belongs to the brand it claims.

  1. ClickMISUIC classifies the link now

    Called locally, or optionally on a remote MISUIC service.

  2. VerdictAllow, warn or block

    Phishing and malware are blocked outright. Likely scams and spam are blocked with a warning the recipient may override.

  3. AfterwardsThe audit trail tells you who is exposed

    If a site is only classified as bad after people have clicked it, you can see exactly who clicked through before that point.

03Audit trails in the interface

Who clicked

Possibly compromised

Every URL click is recorded, so when a site is later classified as bad you can see who went there before it was.

Who received

Everyone who got it

With the rspamd service plugin, you are also alerted to everyone who received the message, not only those who clicked.

In one place

In the interface

Both views live in Scorpion's own interface, so the answer to "who do we need to call?" is one lookup.

04Who it is for

Mail providers and MSPs

One entry point in front of many backends, routed by name or by login, and migrations your customers never see.

Corporate

Modern TLS and IPv6 in front of the mail systems you already have, and audit trails when a link turns bad.

Small offices

Small enough to run on a Raspberry Pi. Fits the same way as it does at scale.

05Runs anywhere, stays yours

From AWS and enterprise hardware to the humble Raspberry Pi, right back to ancient Solaris 10 servers: anything new or old, big or small. Scorpion is one more component for organisations that must keep data sovereignty in Europe and Australia, whether you host in the cloud or on-premises.

06Licensing

Get started

Try it in front of your own mail.

Tell us about your servers and clients and we will scope a pilot on your existing infrastructure.

enquiries@misullivan.com