Sephia Five – Military grade Cryptography

Sephia Five, keeping your most precious belongings where they belong

Sephia Five makes PGP cryptography ridiculously easy to use. There are almost no more complex things for you left to do, and you have your emails almost automagically secured for you. Sephia Five makes your email communication cryptographically secure, without you having to put in any effort for it to happen.

Sephia Five is paranoid software, to such an extent, that it will even encrypt your subject, to not give adversaries anything to start with, when trying to figure out what your emails contains. In fact, an adversary will only see some random subject, fetched from for instance the New York Times, Wall Street Journal, or some other customised babelizing service. This feature encrypts and hides your original subject, and also makes your emails being perceived as innocent discussions about your local news. Which babelizing service you wish to use, can easily be configure in your settings.

Virus and malware protection

In addition to super secure cryptography, Sephia Five makes it much harder for you to have your computer infected by viruses and other malware. Sephia Five will warn you if you try to download an attachment that is not considered 100% safe. This makes it harder for you to become infected by viruses, since you’ll consciously have to make a decision yourself, to download a virus or some other malware.

Almost all intrusions into organisations today happens through ‘phishing’. Sephia makes this almost impossible, since it clearly shows you who you can trust, and which attachments you can safely download, without being hacked.

Never send emails to the wrong recipient again

Sephia Five will warn you, if you try to send an email to an email address that is not on your list of contacts. Most security breaches are due to human nature. If you send an email containing confidential information to the wrong email address, this might have devastating consequences for you and your organisation.

The difference between a trusted colleague, or some random person, might be as little as a single dot. A lot of scandals have occurred due to the one sending the email wrote instead of If you try to send an email to a person that is not in your list of contacts, Sephia Five will warn you, and stop the email from being sent, until you confirm that you still want to send it. If you still choose to send the email, this recipient will be added to your list of contacts, avoiding future warnings for the same email address.

The most aggressive spam filter in the industry

Sephia Five contains what is probably the most aggressive spam filter in our industry. By default, spam filtering is turned off, but if you wish, you can setup Sephia such that it labels all emails that originates from people that you’ve never sent an email to first as spam. We refer to this is the ‘Hollywood spam filter’. You can also have a requirement that emails are cryptographically signed, and/or encrypted, before they’re accepted into your inbox.

Hollywood spam filter implies; “Don’t call us, we’ll call you”

And of course, you still have the ability to manually check emails that are caught in your spam filter, and explicitly mark them as safe. If you do, then all future emails from that sender will avoid your spam folder. You can also do the opposite, and mark an email explicitly as spam, at which point all future emails from that contact will be treated as spam.

This gives you 100% perfect control over your privacy, through a very simple ruleset, that puts you in control, while still being as automated as possibly, not adding anything to your daily routine in any ways, that could be defined as additional workload. Often email software vendors tries to create spam filters based upon artificial intelligence, which ends up creating algorithms you cannot understand, and hence you tend to loose a lot of email that you want, and receive a lot of email that you do not want. This will simply never occur with Sephia Five, since the spam filter in Sephia is created around a simple ruleset, easily understood, and predictable for you as you use Sephia Five. Even though the spam filter in Sephia is ridiculously easy to understand, it is still extremely strong, making it easy for you to never again receive spam, or ever again drop an email you actually wanted to have.

Privacy is more than just cryptography

Don’t get me wrong, cryptography is super important, for anyone taking their business seriously. But Sephia Five also contains privacy features that allows you to literally have your privacy. Sephia Five can be configured such that it only allows its users to check their emails at specific times during the day. This allows you to stay focused on your tasks, during most parts of the day, and create specific times during the day, when you want to read your email. This can be configured on a per user/role basis.

If you are experiencing problems with your employees spending too much time reading and answering emails, then we have the fix for that.

Sephia Five is not ‘slot machine’ software

A lot of software vendors are unfortunately creating what we like to refer to as ‘slot machine software’. This means that the software is full of bells and whistles, that interrupts you, or somehow steals your focus away from your tasks.

Sephia Five contains almost no message bubbles, few colours, no logos, and nothing else that distracts you from doing what you want to do – Which is to get to your information, as fast and cleanly as possible. Sephia Five allows you to read and send emails, within the comfort zone of your privacy, period. This feature if Sephia Five allows you to stay much more focused, avoiding interruptions, as you try to finish your tasks. Sephia Five does not pollute your mind with endless distractions and fancy colours. Sephia Five almost completely eliminates all ‘cognitive noise’.

Sephia Five puts the Zen into software


Sephia Five’s feature list, also contains features that are not about security. For instance, you can compose emails using Markdown, which allows you to add formatting to your emails, using the familiar Markdown syntax. This allows you to create rich text emails, without using any complex editors, simply by adding your formatting commands using Markdown.

Markdown is the intuitive way to create formatted text, to emphasise and group related information, using nothing but the text itself. To emphasise something, simply add an asterix surrounding the word you want to have emphasised. To further emphasise something, add two asterix around the text you want to have emphasised. The list goes on, but really, you don’t have to learn Markdown to take advantage of it – Simply because you already intuitively know Markdown, since Markdown is the way your brain would automatically add formatting to your text, as long as you take a little bit of care when you write.

Another feature we’re particularly proud of, is that you can have multiple emails open at the same time. This allows you to read and reference parts from multiple emails, while composing or replying to some other email(s). Try to open up all the welcome emails in your inbox, and see how this works in practice.

With Sephia Five, you can also create ‘conversations’, which keeps track of who said what, as you and your friends replies to each other emails’. This allows you to much more easily follow the flow of your communication, and see it in context. This too almost happens automagically as you reply to other people’s emails, at least as long as all recipients are using Sephia Five.

If you are tired of endless marketing emails, with tons of colours and images in your inbox – Rest assured of that Sephia Five will never show you another HTML email for as long as you live. You can still fully take advantage of Markdown if you do, since as previously said, this is the way your brain would logically interpret the context and important parts of your emails.

Sephia Five is also carefully constructed such that it does not become noisy for your brain and eyes. This is important for your brain to be able to pick up the most important parts of your communication. Imagine trying to hold a conversation at a rock concert. Obviously, it is more difficult to understand what’s being said. Sephia Five is carefully constructed in a visual and psychologically silent way, such that it becomes easier for your brain to focus on what you should focus on; Your data. Sephia Five has few buttons, and does a lot of intelligent automatic background work for you. This means that you get a more silent psychological and visual environment to communicate with your colleagues and friends, with fewer misunderstandings.

Sephia Five is environmentally friendly software, created to be friends with your mind, and not fight it for attention, for some randomly placed ad, logo, or marketing gibberish. This clean way of communicating, cannot be emphasised enough, since it allows your brain to more easily digest the important parts of your communication. The number of buttons and choices have been carefully reduced to a minimum – Such that only what is relevant for you will be displayed at any time. Colours are by default kept to a minimum, and there are no ads stealing your attention. Sephia Five is built to be friends with your mind, and never distract you, from what you want to do.

Sephia Five works on every device you already have, allowing you to access your emails on your tablet, computer or phone

Possibly the best part of Sephia Five, is that you don’t need to change your existing email address. You can setup Sephia Five to use your existing email address, including GMail if you wish – And the transition to becoming 100% secure online, becomes 100% transparently implemented, without you feeling anything, besides that warm and cozy feeling of that your communication can now be 100% perfectly trusted, and that you have reclaimed your privacy.


Sephia Five is ridiculously small in bandwidth footprint. GMail uses more than 4MB of bandwidth consumption when opened without cache turned on, and 1.5MB if cache is turned on. Sephia Five will use 0.25 MB at the max with cache turned off, and roughly 0.05 MB with cache turned on. This means that Sephia Five is perfectly fine working over very slow internet connections.

This also means that Sephia Five can open your emails faster, and you can start composing your emails faster, and in general terms wait less, than that which you’ll have to do when using most of the alternatives out there. Sephia Five responds faster than your brain and fingers. This is something you will learn to appreciate as you start getting used to it.

Time is money, if that is true, Sephia Five gives you money, since it gives you more time

Sephia is Open Source and Free Software

Sephia Five is also Open Source and Free Software. This means that you or anybody with knowledge about programming, can scrutinise its code, to make sure that there are no backdoors in the system. This is our guarantee to you about that we take your privacy important.

This also allows you to modify it and customise it as you see fit, and it makes you less dependent upon having to trust others to maintain your installation of Sephia Five. Sephia Five returns your Freedom to you, and empowers you in every way.

Reclaim your Privacy, reclaim your Time, reclaim your Freedom – Download Sephia Five


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