About LSES
The only training provider focused exclusively on email security. One subject, taught with unmatched depth.
One subject. Unmatched depth.
The London School of Email Security exists for one reason: to teach email security with unmatched depth and rigour. We do not teach networking, cloud security, or general IT. Email is all we do.
Our content is written, not filmed. Every module is a carefully structured document backed by hands-on labs using real domains and real DNS. We believe practitioners learn by doing, not by watching.
Every programme is maintained by active practitioners who work with email authentication daily. When standards evolve, our content evolves with them — often the same week.
How we teach.
Content-Driven
Written, structured modules designed for deep comprehension. No filler videos or slide decks — just clear, expert-written technical content.
Lab-Focused
Every module includes hands-on labs using the LSES CLI Agent. You work on real domains with real DNS records, not simulated environments.
Practically Assessed
Certification exams test real skills on real infrastructure. Pass by demonstrating competence, not by memorising multiple-choice answers.
The LSES CLI Agent.
Our command-line tool connects directly to your learning environment. Start labs, verify DNS records, get contextual hints, and take exams — all from your terminal.
# Install the CLI Agent
$ npm install -g @lses/cli
lses authAuthenticate your CLI sessionlses startStart a module lab environmentlses verifyVerify your DNS configurationlses hintGet a contextual hintlses statusCheck your progresslses exam startBegin the certification examZero Infrastructure Cost
No VMs, no cloud accounts, no setup. The CLI Agent runs locally and connects to our verification servers.
Real System Verification
Every lab verifies real DNS records on real domains. No sandboxed simulations — genuine infrastructure.
Self-Updating
The CLI Agent updates itself when new modules or exam versions are released. Always current.
London School of
Email Security
Authex
Education
LSES trains the practitioners
Tooling
Authex provides the platform
Together
Learn it, then deploy it
Education meets production tooling.
LSES is an Authorised Partner of Authex, the email authentication platform at authex.online. This partnership means our training content is always aligned with production-grade tooling.
Graduates gain hands-on experience with the same tools used by security teams in production. The skills you learn here transfer directly to your day job.
- Free Authex domain scanner for all students
- Graduates receive 3 months of Authex Pro access
- B2B bundles combine training with platform licences
Contact us.
Whether you have a question about a programme, want to discuss corporate training, or just want to say hello — we'd love to hear from you.
hello@londonschool.email
Location
London, United Kingdom
Response time
Within 1 working day
Corporate enquiries
For team licences, private training, and enterprise packages, please use the form or email us directly. We typically respond within a few hours for corporate requests.
Ready to start learning?
Explore our programmes or join a live training session. The next step in your email security career starts here.