TECTRUNA

Private Mail Infrastructure

Tectruna Mail is a private email service for invited users and organizations. Encrypted connections, authenticated delivery and layered threat defense, with no advertising, no profiling and no noise.

Access webmail How it works
AccessBy invitation
ConnectionsEncrypted
TrackingNone
UTCUTC

01/ The Service

Mail built to protect, not to profile.

Tectruna Mail is an independent, privately operated email service. It exists for one purpose: to carry correspondence reliably and securely, from the moment a message is written to the moment it is read.

Every connection is encrypted, every outgoing message is cryptographically signed, and every incoming message is screened before it reaches an inbox. There are no advertisements, no tracking and no data sharing, only mail, handled with care.

Client access

Encrypted only

Outgoing mail

Signed & verified

Advertising

None, ever

Accounts

By invitation

02/ How it works

Every message, four layers of care.

Layer I

Screen

Incoming connections are examined at the edge. Automated senders, known bad actors and malformed traffic are turned away before a message is accepted.

Layer II

Verify

Sender identity is checked against published domain policies. Forged and spoofed messages are identified and handled accordingly.

Layer III

Filter

Content is analysed for spam and threats. The filter learns from each user's decisions and becomes more accurate over time.

Layer IV

Deliver

Clean mail reaches a private mailbox, synchronised across every device. Outgoing mail is signed and sent over encrypted channels.

03/ Features

One service. Six safeguards.

Select any feature to see what it does for you.

01

Secure Transport

Every connection to the service is encrypted with modern protocols. Plain-text access is never offered.

02

Sender Authentication

Outgoing mail is cryptographically signed and backed by strict domain policies, so recipients know it is genuine.

03

Threat Defense

Layered spam and threat filtering that stops unwanted mail at the door and learns from your decisions.

04

Private Webmail

A fast, clean browser interface for reading, writing and organising mail, available anywhere.

05

Any Device

Use the mail app you prefer. Mail, folders and read status stay in sync across every device.

06

Rules & Automation

Server-side filters, forwarding and out-of-office replies that work even when your devices are off.

04/ Standards

Built on open standards.

Expand any area to see the protections in place.

All client connections require modern encryption. Server-to-server delivery is encrypted whenever supported, and an enforced policy requires supporting providers to use verified encryption when delivering to this service.

TLS 1.2+MTA-STSDANETLS reporting

Outgoing mail is signed and aligned with strict domain policies, and incoming mail is checked against the sender's own policies before it is accepted into an inbox.

SPFDKIMDMARCARC

Name lookups are resolved privately and validated cryptographically, so mail cannot be silently redirected by forged DNS answers.

DNSSEC validationPrivate resolutionCAA

Passwords are stored only as strong one-way hashes. Repeated failed sign-ins trigger automatic, escalating lockouts, and sending limits protect against account misuse.

Salted hashingAutomatic lockoutRate limiting

Mailboxes are accessed through widely supported open protocols, and filters use an open rules language, so your mail is never tied to a single application.

IMAPSMTP submissionSieveAutoconfig

05/ Commitments

What you can rely on.

A

Privacy by default

No advertising, no profiling and no sale of data. Mail is processed only to deliver and protect it.

B

A clean inbox

Layered filtering keeps spam and threats out, and improves as you use it.

C

Trusted delivery

Signed, authenticated mail that other providers recognise as genuine.

D

Continuity

Automated daily backups, routine health monitoring and prompt security updates.

E

Portability

Open standards throughout. Your mail can always be moved in standard formats.

F

Discretion

A private service with a deliberately small footprint and nothing to sell.

Access

Invitation only

Clients

Web, desktop & mobile

Standards

Open protocols, no lock-in

06/ Principles

Our principles

“Your correspondence is yours. Nothing more, nothing less.”

i. Confidentiality

Private by design

Messages are never read for advertising or shared with third parties. Access is limited to what operating the service requires.

ii. Security

Defense in depth

Encryption, authentication, filtering and monitoring work together, so no single layer has to be perfect.

iii. Simplicity

Nothing extra

No bundled apps, trackers or distractions. Just mail that works, quietly and reliably.

iv. Continuity

Built to last

Maintained, patched and backed up as a matter of routine, not as an afterthought.

07/ FAQ

Common questions.

Tectruna Mail is a private email service. It provides secure mailboxes with encrypted access, authenticated delivery, spam and threat filtering, webmail and support for standard mail apps, without advertising or tracking.

Not publicly. Tectruna Mail is invitation-only. Accounts are created by an administrator for approved users and organizations.

Every connection between your devices and the service is encrypted. Mail exchanged with other providers is encrypted whenever the other side supports it, and published delivery policies require providers that support them to use verified encryption when delivering mail to you.

You can use the built-in webmail, or any standard mail app on desktop and mobile. Most apps detect the correct settings automatically when you enter your address.

No. Messages are processed automatically only to deliver them and to protect you from spam and threats. They are never used for advertising, profiling or sold to third parties.

Contact your administrator to have it reset. Once signed in, you can change your password at any time from the webmail settings.

08/ Access

By invitation.

Existing usersSign in to webmailOr connect any standard mail app using your address.
Access requestsinquiries@tectruna.comRequests are reviewed individually.
Abuse & securityabuse@tectruna.comReport misuse or security concerns.
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