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  About Our Email Standard Packages Demonstration Packages Discounts Payment Options Technical Information  

Products  About Our Email

NamibHub offers a wide variety of packages to suite every customers needs and requirements. Should you not find what you are looking for or need more information, please contact us at info@namibhub.com and we will see if we cannot accomodate your special needs by means of customized solutions. Customizable packages puts us in a unique position to assist you with alternative solutions. Please allow up to 24 hours of procesing befor contacting us by any other means.

Our office hours are from 08:00-17:00 which does not suggest that we are not available later or earlier, especially by email.

NamibHub will implement a SMS or pager system which can be used to reach us in the event of emergencies. After hour services will be charged at N$50 per incident and does not relate to server problems.

Products  Standard Packages

To simplify things we have build up a product range that allows customers to choose one or more packages without the need for a quotation. All listed packages are based on monthly rates and come with an one year contract which will automatically renew if not canceled one month in advance.

NamibHub also implemented discount and referal systems to reward customers based on service volumes and referals. Email package have been categorized using Namibian fauna (Animal life) to make it easier for customersto understand.

The following packages are available:

Bushbaby (Lesser Bushbaby)

(a) N$20 - 100 MB STORAGE, POP3, SMTP, WebMail
(b) N$25 - 100 MB STORAGE, POP3, SMTP, WebMail, IMAP
(c) N$40 - 100 MB STORAGE, POP3, SMTP, WebMail, Top Level Domain
(d) N$45 - 100 MB STORAGE, POP3, SMTP, WebMail, IMAP, Top Level Domain
(x) N$15 - 100 MB Extra Email Storage


Scrub Hare

(a) N$25 - 200 MB STORAGE, POP3, SMTP, WebMail
(b) N$30 - 200 MB STORAGE, POP3, SMTP, WebMail, IMAP
(c) N$45 - 200 MB STORAGE, POP3, SMTP, WebMail, Top Level Domain
(d) N$50 - 200 MB STORAGE, POP3, SMTP, WebMail, IMAP, Top Level Domain
(x) N$22 - 200 MB Extra Email Storage



(a) N$35 - 350 MB STORAGE, POP3, SMTP, WebMail
(b) N$40 - 350 MB STORAGE, POP3, SMTP, WebMail, IMAP
(c) N$55 - 350 MB STORAGE, POP3, SMTP, WebMail, Top Level Domain
(d) N$60 - 350 MB STORAGE, POP3, SMTP, WebMail, IMAP, Top Level Domain
(x) N$30 - 350 MB Extra Email Storage


Honey Badger

(a) N$45 - 500 MB STORAGE, POP3, SMTP, WebMail
(b) N$50 - 500 MB STORAGE, POP3, SMTP, WebMail, IMAP
(c) N$65 - 500 MB STORAGE, POP3, SMTP, WebMail, Top Level Domain
(d) N$70 - 500 MB STORAGE, POP3, SMTP, WebMail, IMAP, Top Level Domain
(x) N$30 - 500 MB Extra Email Storage

Products  Demonstration Packages

For the convenience of new customers Namibhub introduced a 1 week demonstration account. The purpose of demonstration accounts is to allow customers to establish product suitability better determin their own requirements. To qualify customers must complete the same application forms as interested customers which has been designed in such a way as to allow re-use as a inal contract.

For customer convenience, application forms can be mailed, emailed, faxed and even hand delivered. We don't mind assisting customers with the completion of forms providing this has been arranged in advance. Hand delivery of documents only applies to the Windhoek region and 30km from the main post office.

Products  Discounts

Volume Discounts

This is our method of reward clients who subscribe to our services in bulk amounts or in mass quantities

10+ Accounts get a 20% Discount
20+ Accounts get a 30% Discount
40+ Accounts get a 40% Discount

Prepaid Discounts

15% Discount for Contracts Prepaid Annualy

Products  Payment Options

Debit Orders

Namibhub implemented a debit order system to simplify and ease payments for our customers. Debit orders will be processed the 1st of every month.

A debit order, direct debit or direct withdrawal is an instruction that we, Namibhub give to our bank to collect an amount directly from your account. It is similar to a direct deposit but initiated by NamibHub on behalf of you, the client.

Unlike standing orders, which require the amounts to be fixed, direct debits can be used for varying amounts, and are more similar to direct deposits, which are initiated by the payer. With direct debits, the payee can simply indicate a different amount each time.

Namibhub will inform customers annualy regarding changes in our packages should this become an requirement.

Terms and Conditions do apply

Internet Banking

NamibHub does accomodate internet banking. It remains clients responsibily to sent us proof of payment to to avoid disruption of services. It is not our responsibility to find out if customers have indeed paid. Internet baking customers should use their accound number as reference allowing us to clearly distinguish their payments from others.

Cash Payments

Customers that wish to pay cash have to pay 3 months in advance. The reason for this is to illiminate paperwork (i.e. Writing our receipts) and the burden of keeping petty cash around etc.


NamibHub accepts cheques but only from well established customers or only for services. With all the other forms of payment available, their exists no need for cheuques besides sending payment by mail. Namibhub will not allow grace for customers cheque payments that have not arrived on time because of postal services or any other reason for that matter.

Products  Technical Information

  Multi Protocol Support (POP, IMAP, SMTP, WebMail and DNS)

NamibHub supports the following email protocols:

POP - Post Office Protocol (POP)

POP is an application-layer Internet standard protocol used by local e-mail clients to retrieve e-mail from a remote server over a TCP/IP connection. POP and IMAP (Internet Message Access Protocol) are the two most prevalent Internet standard protocols for e-mail retrieval.


NamibHub POP3 (Inbound e-Mail) Ports

POP3 Inbound Port : 110
POP3 SSL Port : 995 (See SSL Encryption for more details)


SMTP - Simple Mail Transfer Protocol (SMTP)

SMTP is an Internet standard for electronic mail (e-mail) transmission across Internet Protocol (IP) networks. While electronic mail servers and other mail transfer agents use SMTP to send and receive mail messages, user-level client mail applications typically only use SMTP for sending messages to a mail server for relaying.


NamibHub SMTP (Outbound e-Mail) Ports

  POP3 Inbound Port : 25
POP3 SSL Port : 465 (See SSL Encryption for more details)


IMAP - Internet Message Access Protocol

Internet Message Access Protocol (commonly known as IMAP, and previously called Internet Mail Access Protocol, Interactive Mail Access Protocol, and Interim Mail Access Protocol) IMAP is an Application Layer Internet protocol operating on port 143 that allows an e-mail client to access e-mail on a remote mail server.

The idea is pretty much the same as Webmail without the burden of html interface. IMAP supports both on-line and off-line modes of operation. E-mail clients using IMAP generally leave messages on the server until the user explicitly deletes them. This and other facets of IMAP operation allow multiple clients to access the same mailbox.


NamibHub SMTP (Online e-Mail) Ports

  IMAP Inbound & Outbound Port : 143
  IMAP SSL Port : 993 (See SSL Encryption)


Webmail (WorldClient)

Webmail (or Web-based e-mail) is an e-mail service intended to be primarily accessed via a web browser, as opposed to through a desktop e-mail client (such as Microsoft Outlook, Mozilla's Thunderbird, or Apple Inc.'s Mail).

A major advantage of webmail over application-based e-mail is that a user has the ability to access their inbox from any Internet-connected computer around the world. However, the need for Internet access is also a drawback, in that one cannot access old messages when not connected to the Internet.


NamibHub Web E-Mail Browser Ports

  HTTP Inbound Port : 80
  HTTP SSL Port (HTTPS) : 443 (See SSL Encryption)


DNS (Dynamic Name Services)

The Domain Name System (DNS) is a hierarchical naming system for computers, services, or any resource connected to the Internet or a private network. DNS translates domain names meaningful to humans into the numerical (binary) identifiers associated with networking equipment for the purpose of locating and addressing these devices worldwide.



Human Readable Format

www.google.com - Word Format - 32 bit IP in 4 Number Decimal Numeric format = "www.google.com"

Computer Readable Format

01000010011001100000100110010011 - 32-Bit Binary = "www.google.com"

NamibHub DNS Ports

DNS Ports : 53 (Not Required by customers. DNS will be resolved by local the clients local DNS servers as provided by their ISP.


  Browser & Email Client Support

The aim of this list is to give customers an indication of what works and works best with our services.  Web browsers and other software keep developing at an amazing pace and it is important that clients know what works and how well.

If your software is not listed, it does not mean or suggest it is not supported. Please contact us if your software is not listed but vital in day to day operations and we will establish if and how this is possible.

following applications have been tested and are known to work:

Email Clients

  • Microsoft Outlook XP, 2003, 2007 & 2010
  • Microsoft Outlook Express
  • Mozilla Thunderbird
  • Evolution
  • KDE KMail 4.3.5 4.4

Web Browsers (WebMail)

  • Mozilla Firefox
  • Microft Internet Explore 7, 8
  • Apple Safari

SSL Encryption

Besides using standard e-mail protocols, NamibHub also supports and recomends the use of encrypted encryped e-mail. To achieve this NamibHub implemented SSL encryption on POP, SMTP, IMAP and HTTP (WebMail).

Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL), are cryptographic protocols that provide security and data integrity for communications over networks such as the Internet. TLS and SSL encrypt the segments of network connections at the Transport Layer end-to-end.

Encryption is generally used by insitutions (i.e. banks, credit card companies) requiring security and privacy. Encryption protocols are designed to prevent eavesdropping, tampering and message forgery. NamiHub has fully implemented SSL encryption methods to ensure that our customer's email services, passwords and data remain fully confidential when used from insecure locations such as internet cafes, airports etc.

Cryptology protocols will not work with transparent proxy servers (Due to end-end encryption) which ensures that internet backbone and service providers cannot breach our clients' privacy using transparent proxy servers and similar technologies. To ensure privacy, clients should always ensure that their browser indicates that their connection is encrypted which is usually indicated with a lock. It should also be noted that while our services are secure, those of other service providers are not.

Anti Virus

Emails are scanned using some of the world’s best rated and most advanced anti-virus solutions. Anti-Virus software will be renewed and reviewed at least once per annum to ensure best performance and reliability. Presently we use, recommend and sell Bitdefender products which are rated amongst the very best.

You can find some rankings here:

 TopTenReviews Anti-Virus

Our IT company, Impulse Computer Services also provides sales, services and support for all Bitdefender products but we can justas well provide service and support for any other product. These include but are not limited to Kasperski, Syamantec or Norton Anti-Virus, Webroot Anti-Virus etc. As we don't specialize in other products, extra import considerations (i.e. Transport) may apply.

Over 20 years of inhouse IT experience (Starting in 1987 with protection against Stoned Virus etc.) means that we have seen best sellers come and go. We used to sell products from Mcafee, Webroot, Symantec (Norton), Trend Micro etc. but in consideration of what is best for us and our customers, we moved on and are presently using Bitdefender.

While Bitdefender is excellent, no single solution can ever be 100% effective. It remains customers responsibiliy to protect themselves my not browsing websites considered as virus and malware havens etc. and by not opening spam emails which clearly don't have the clients best interests at heart.

Emails are scanned when they pass though the system. This means customers can be ensured that emails stored and passing though our system will be clean of any malware and virusses. Existing emails which are kept online are rescanned at regular interval using multiple scanners. This allows us to find new and unknown virusses and assess the effectiveness of our anti-virus products.

s site policy reserves the right to remove emails or content containing viruses, malware and spyware and executable attachments (As these might be malicious).

Anti Spam

Emails that are considered possible spam will be tagged. Emails identified as definate SPAM will be removed. SPAM is identified using a combination of Heuristics and Bayesian scanning techniques. To allow emails to pass freely, the recipient can forward emails listed as SPAM as attachment to whitelist@usersdomain.xxx ("usersdomain.xxx" refers to your own domain on our server) which will add the user into our servers white list, allowing it to pass un-hindered in future.

Our server uses the following anti-spam techniques:

Bayesian spam filtering

    Bayesian spam filtering uses techniques of statistical e-mail filtering. Particular words have particular probabilities of occurring in spam email and in legitimate email. For instance, most email users will frequently encounter the word "Viagra" in spam email, but will seldom see it in other email. The filter doesn't know these probabilities in advance, and must first be trained so it can build them up. To train the filter, the user (Our Client) must manually indicate whether a new email is spam or not. For all words in each training email, the filter will adjust the probabilities that each word will appear in spam or legitimate email in its database. For instance, Bayesian spam filters will typically have learned a very high spam probability for the words "Viagra" and "refinance", but a very low spam probability for words seen only in legitimate email, such as the names of friends and family members..

    After training, the word probabilities (also known as likelihood functions) are used to compute the probability that an email with a particular set of words in it belongs to either category. Each word in the email contributes to the email's spam probability, or only the most interesting words. This contribution is called the posterior probability and is computed using Bayes' theorem..

    Then, the email's spam probability is computed over all words in the email, and if the total exceeds a certain threshold (say 95%), the filter will mark the email as a spam. Email marked as spam can then be automatically moved to a "Junk" email folder..

    The initial training can usually be refined when wrong judgments from the software are identified (false positives or false negatives). That allows the software to dynamically adapt to the ever evolving nature of spam..

    NamibHub combines the results of both Bayesian sand heuristics (pre-defined rules about the contents, looking at the message's envelope, etc.), resulting in even higher filtering accuracy.NamibHub combines the results of both Bayesian sand heuristics (pre-defined rules about the contents, looking at the message's envelope, etc.), resulting in even higher filtering accuracy.

    Heuristic Scoring Options

    Heuristic scanning uses experience-based techniques that help mail servers identify and solve the spam problems by learning and discovery. The heuristic method is used to rapidly come to a solution (Detecting spam) that is hoped to be close to the best possible answer (If a message is spam or not). Heuristics are "rules of thumb", educated guesses, intuitive judgments or simply common sense.

    In more precise terms, heuristics stand for strategies using readily accessible, though loosely applicable, information to control problem solving..

    Using a scoring system, our server accumulates a score based on various criteria. Included in the scoring system are black listings by various Anti-SPAM Servers (Servers that confirm or deny a DNS entry as found in the sender's address to be a source of SPAM), reverse DNS lookups (See if a Sender's email domain refers to the IP address his/her email is coming from) etc. our server is not forced to come to a conclusion based on single criteria (i.e. one DNS Blacklist server saying it is)..

    A message is spam if its score is greater or equal to [XX] (0.0-500.0))

    The value that we specify is the required spam threshold that NamibHub will compare to each message's spam score. Any message with a spam score greater than or equal to this amount will be considered spam, and then the appropriate actions will be taken based on other Spam Filter settings..

    If we have the spam score threshold set to 5 and the rejection threshold set to 10, then any message with a spam score that is greater than or equal to 5 but less than 10 will be considered spam and handled according to the rest of our spam filter settings. Any message with a spam score greater than or equal to 10 will be rejected by NamibHub during the delivery process.If we have the spam score threshold set to 5 and the rejection threshold set to 10, then any message with a spam score that is greater than or equal to 5 but less than 10 will be considered spam and handled according to the rest of our spam filter settings. Any message with a spam score greater than or equal to 10 will be rejected by NamibHub during the delivery process.


Unlike many other serverrs, NamibHub serves areebeingg completelyy backed up on a daily basis using aa some of the most extreme, securee and highlyy accurate Linux based backups systemsspresently available..

Backups are made on ourr
onlinee servers inn Chicago, Illinoiss in the USAA (Allowing speedy and immediate recovery) but we do also keep offline backups inn Namibiaa. Backups to Namibia are doneeusingg SSL transportt protocols and automationn. These servicess areepreventative measure in case of a server crash, virus attack, natural disasterrand acidental deletion by customerssetc..We can do a fulll serverr restoree to the latest staandinggor even movve ourr entire infrastructure too another center thousands of kilometers awayy.

Backup areeconsidered extremely important for ussand are one of our mayor selling points. NamibHub is considering setting up a secondary server system at a completely separate data centre and continent which would allow us full redundancy in the event of a national disaster at one of our data centers. An example of such an disaster is an attack on the Trade Centers in New York now better known as 911. Hosting mirrored services continents apart ensures that no disaster should be able to bring our services to a standstill..

Exact baa
ckups schedules are note listed for security reasons. All we can say is that backups are done at least daily and that these are highly reliable and secure..

NB: While NamibHub does provide recovery services, these are not free unless the recovery can be traced to a system failure and is therefore our responsibility. Recovery for individual accounds or domains will be charged at N$350 per hour and is chargable by the half hour for individual accounts and hourly for multiple accounts or entire domains..

  Content Filtering

Clients can set up their own content filters using the Webmail (WorldClient) Interface..

We are also busy implement a "Frequently asked Question" section which will explain to clients how to use some of these services. For clients that want personal training, we offer our personal services though Impulse Computer Services.

Content filtering allows our server to move, copy and delete your email when it arrives based on user pre-defined rules. Content filtering also works great in combination with folder sharing, which is a feature that is very much unique to our servicess

All emails send by a specific user or from a specific domain could be filtered into a specific folder etc..


  Message Signatures

WebMail clients can edit and use his/her own text or html compliant email signature using the Webmail interface. This allows auto insertion when a user writes a new email under his/her webmail..

  Folder Creation

Users can create their own folders and sub-folders using IMAP or Webmail interface. This allows users to sort email manually or by using content filters which the user can control personally..

  Folder, Contacts, Notes and Task Sharing

Our serverrallows users to share data with other accounts on our server, even between different hosted domains. This makes it extremely easy for users to copy correspondence into a folder that is shared with other users for reading and/or revision. Users that are given access to shares can be restricted in terms of type of access (i.e Read Only, Edit or Full Access) by the person that shares his/her facilities..

  WebMail Plain Text and HTML message composition

Clients can write Webmail in a way that is professional and attractive using a fully functional HTML capable Webmail interface. There is no need to use email client software to look professional.. Our WebMail provides you with all the necessary tools..

  Spell Check / Dictionary

Our Webmail facilities allow you to do spell checking in a variety of languages.Our Webmail facilities allow you to do spell checking in a variety of languages.

  Domain Hosting, Registration and Transfer

NamibHub has full capability to host, register and transfer customer domains. We have formed and alliance with GoDaddy, which serves as the largest ICANN accredited domain registrar in the world. This puts us in the unique position to provide clients with services at a level and rates that can be considered extreme good value for money. Domain Registration and transfer fees will be supplied on request.

Clients will by default be registered with full ownership over their own domains, unlike some other domain registration services which we have encountered in Namibia.

We encourage companies to register their own domains which they can then use in combination with our email and web hosting services. We charge a one time fee for setting up our email server to accommodate each domain. Using a individualized domain is considered more professional than hosting and account under an ISP's name or as par of one of the free services like HotMail, Yahoo, Google etc. and means the client has full control over availability of email accounts, aliases etc.

  Problems Sending or Receiving Emails

We are aware that many emails in Namibia get lost due to unknown reasons. Unfortunately at such time their is no post office to blame. Still it is very dissatisfying for customers to find out their email never reached its destination without ever being able to determine who is to blamee

Our email server puts us in the unique position to trace exact cause of problems due to its detailed logging system. Should you have concerns about emails not arriving etc., you may feel free to to email us to investigate the issue. It is important that you must provide us with the sender's and destination email address(es), subject, date and time an email was send allowing us to trace our logs and establish what went wrong. Clients should note that we handle thousands of emails every day which might make it extremely problematic tracing problems without aforementioned information. Queries should be send too whereismydmail@namibhub.infoo. Clients should get a response within 48 hours. We will work on the implementation of a automated system if this is at all possible. Due to security, we cannot just simple send out logs at will as that may put our server and services at risk. Some of the information as listed in the example below has also been altered to ensure the privacy of our the actual client as well as the location of our mail queues..

Example of Level of Logging Support on Incoming Email picked up via POP Protocol::

Mon 2009-08-24 15:24:55: -----------
Mon 2009-08-24 15:24:55: Routing message (inbound queue): d:\namibhub\queues\inbound\md50000164664.msgg
Mon 2009-08-24 15:24:55: * From: confidential@yahoo.com; Recipient: confidential@domainx.org; Size: 3245; Message: d:\namibhub\queues\local\md50000002032.msgg
Mon 2009-08-24 15:24:55: * Subject::
Mon 2009-08-24 15:24:55: * Message-ID: <644337.81924.qm@web62308.mail.re1.yahoo.com>>
Mon 2009-08-24 15:24:55: -----------
Mon 2009-08-24 15:24:57: Spam Filter processing d:\namibhub\queues\local\md50000002032.msg....
Mon 2009-08-24 15:24:57: * Message return-path: confidential@yahoo.comm
Mon 2009-08-24 15:24:57: * Message from: confidential@yahoo.comm
Mon 2009-08-24 15:24:57: * Message to: confidential@domainx.orgg
Mon 2009-08-24 15:24:57: * Message subject::
Mon 2009-08-24 15:24:57: * Message ID: <644337.81924.qm@web62308.mail.re1.yahoo.com>>
Mon 2009-08-24 15:24:57: Start SpamAssassin resultss
Mon 2009-08-24 15:24:57: 4.90 points, 5.00 requiredd
Mon 2009-08-24 15:24:57: * 0.0 HTML_MESSAGE BODY: HTML included in messagee
Mon 2009-08-24 15:24:57: * 2.9 TVD_SPACE_RATIO BODY: TVD_SPACE_RATIOO
Mon 2009-08-24 15:24:57: * 1.3 MISSING_SUBJECT Missing Subject: headerr
Mon 2009-08-24 15:24:57: * 0.6 EMPTY_MESSAGE Message appears to have no textual parts and noo
Mon 2009-08-24 15:24:57: * Subject: textt
Mon 2009-08-24 15:24:57: * 0.1 RDNS_NONE Delivered to trusted network by a host with no rDNSS
Mon 2009-08-24 15:24:57: End SpamAssassin resultss
Mon 2009-08-24 15:24:57: -----------
Mon 2009-08-24 15:24:57: Content Filter processing d:\namibhub\queues\local\md50000002032.msg....
Mon 2009-08-24 15:24:57: * Message return-path: confidential@yahoo.comm
Mon 2009-08-24 15:24:57: * Message from: confidential@yahoo.comm
Mon 2009-08-24 15:24:57: * Message to: confidential@domainx.orgg
Mon 2009-08-24 15:24:57: * Message subject::
Mon 2009-08-24 15:24:57: * Message ID: <644337.81924.qm@web62308.mail.re1.yahoo.com>>
Mon 2009-08-24 15:24:57: Start Content Filter resultss
Mon 2009-08-24 15:24:57: * Matched 0 of 2 active ruless
Mon 2009-08-24 15:24:57: End of Content Filter resultss
Mon 2009-08-24 15:24:57: -----------
Mon 2009-08-24 15:24:57: Routing message (local queue): d:\namibhub\queues\local\pd50000002032.msgg
Mon 2009-08-24 15:24:57: * From: confidential@yahoo.com; Recipient: confidential@domainx.orgg
Mon 2009-08-24 15:24:57: * Subject::
Mon 2009-08-24 15:24:57: * Message-ID: <644337.81924.qm@web62308.mail.re1.yahoo.com>>
Mon 2009-08-24 15:24:57: * Size: 3894; Message: d:\namibhub\users\domainx.org\confidential\md50000001798.msgg
Mon 2009-08-24 15:24:57: -----------

  Additional Services

Through our IT company, Impulse Computer Services, we are in the unique position to offer you sales, service and support for IT related services.


NamibHub continually strives to improve on its offerings to attract new and keep existing customers happy. To be able to make such improvements, we rely on the support and contributions (Prompt payments) by customers. Clients are welcome to relay new ideas and suggest ways we can improve our service. Clients are also encouraged to let us know if things are not as they should be. We are always willing to listen to clients concerns, dreams and wishes. We will air new ideas on our web site and leave it to clients to vote for the implementation thereof.

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