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News, Solutions, and Insider Notes
Archive for the ‘TechNotes’ Category
Tuesday, December 30th, 2008
We have recently seen a significant increase in occurrences where users are getting Spam email messages that appear to come from their own address (i.e. "joe@domain.com" gets a Spam email addressed from "joe@domain.com"). We discussed this issue tangentially in a previous posting: Bounce Back & BackScatter Spam - "Who Stole My Email Address"? However, many users wonder how this is possible, while others are concerned that their Spam filters are not catching these messages.
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Popularity: 56% [?]
Tags: allow list, email address, filtering, sender, smtp, spam, spf, white list
Posted in TechNotes
Wednesday, December 24th, 2008
Now that LuxSci supports OpenID as an option for logging into WebMail, it raises the questions: "Just how secure is OpenID?" and "Does this new technology allow for more secure logins?" In short, the security of OpenID can vary from very poor to extremely iron-clad. OpenID does allow you to make your logins to WebMail "bullet-proof", if you set things up appropriately.
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Popularity: 29% [?]
Tags: biometrics, fob, openid, openid providers, personal identity portal, rsa, rsa securid, rsa token, security, security token, single sign on, smart card, ssl, strong authentication, trustbearer, usb token, webmail
Posted in TechNotes
Wednesday, December 10th, 2008
LuxSci supports a plethora of modern email programs like Microsoft Outlook and Eudora (our blog posting "Head To Head Battle of Email Clients" discuss several of these) and works with any email program and device that properly supports POP, IMAP, or SMTP. However, we do recommend Mozilla Thunderbird in the absence of any personal preferences or specific requirements for things that may only be supported in Outlook or other specific programs. LuxSci’s staff uses Thunderbird with IMAP (or WebMail) uniformly for all email sending and receiving. We discuss the reasons why in the "Battle" blog article. Here, we will give some configuration tips and tricks and recommended add-ons.
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Popularity: 49% [?]
Tags: caldav, configuration, enigmail, imap, imap keywords, iPod, mozilla, optimize, secure authentication, setup, signatures, ssl, tags, thunderbird, tls, webdav
Posted in TechNotes
Tuesday, December 9th, 2008
So, you’re minding your own business, going about your daily tasks, checking your email, and suddenly your INBOX is flooded with a series of non-delivery reports (aka NDRs or bounce messages). But wait just a minute, you didn’t send these. How did this happen? Did someone steal your email address? How is that possible?
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Popularity: 82% [?] Tags: backscatter, bounce, bounce message, catch-all, challenge response, dkim, domain keys, email alias, email forgery, mailer daemon, NDR, sender policy framework, spam, spf
Posted in TechNotes
Friday, December 5th, 2008
As an email hosting service, we at LuxSci are frequently asked about email clients. We would like to share with you of our expertise and opinions about the most popular email clients. We’ve created a quick guide to email programs that includes an explanation of the client, its major features, and what makes it stand out.
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Popularity: 54% [?]
Tags: alpine, encryption, enigmail, entourage, eudora, imap, imap keywords, kmail, mac, mail.app, microsoft outlook, Outlook Express, pgp, pim, pine, pop, s/mime, smtp, tags, thunderbird, vista, windows live mail, windows mail
Posted in TechNotes
Wednesday, December 3rd, 2008
Domain names ending in ".tel" have gone on sale today. These domain names, like "your-business.tel", are entirely new and function much differently than all other domain names, like those ending in ".com" and ".net". How are these domain names different?
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Popularity: 34% [?]
Tags: .tel domain name, address book, contact information, dns, domain name, iphone, naptr, tel, telnic, telpages
Posted in TechNotes
Wednesday, December 3rd, 2008
TLS (Transport Layer Security) is the mechanism by which two email servers, when communicating, can automatically negotiate an encrypted channel between them so that the emails transmitted are secured from eavesdroppers.
It is becoming ever more important to use a company that supports TLS for email transmission as more and more banks, health care, and other organizations who have any kind of security policy are requiring their vendors and clients to use this type of encryption for emailed communications with them. Additionally, if your email provider supports TLS for email transmission, and you are communicating with people whose providers do also, then you can be sure that all of the email traffic between you and them will be encrypted.
How do you find out if someone to whom you are sending email uses a provider who’s servers support TLS-encrypted communications? We will take you through the whole process step-by-step, but first let us note some important truths about TLS connection encryption.
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Popularity: 47% [?]
Tags: dig, dns, ehlo, mx records, nslookup, smtp, smtp connection, starttls, tls, tls support
Posted in TechNotes
Thursday, November 20th, 2008
Any time you register a domain name, you are required to provide valid contact information for the owner of the domain. This information is published and made publically available in the "WHOIS" database. Anyone can look there to see who owns the domain and to contact the domain owner if necessary.
Private Domain Registration, or WHOIS Masking, or contact privacy, is a service offered by some domain registrars where they will either (a) not publish the domain owner’s contact details, or will (b) publish "masked" details — i.e. details that point to anonymous names and addresses at the registrar.
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Popularity: 55% [?]
Tags: dns, easydns, privacy, private registration, registration, whois, whois masking
Posted in TechNotes
Saturday, November 15th, 2008
The short answer is "no" … unless you need to support web browsers 8+ years old on computers that cannot be patched or upgraded and which are not in the USA or Canada.
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Popularity: 30% [?]
Tags: cipher, export, export grade, pci, security, ssl, tls
Posted in TechNotes
Monday, November 10th, 2008
Security researches will be outlining attacks that can break the WPA wirless security protection of wireless networks this week at the PacSec conference in Tokyo. Erik Tews and Martin Beck will discuss how networks protected by TKIP (Temporal Key Integrity Protocol — originally called WEP2) are vulnerable to attackers being able to inject small amounts of traffic into the encrypted data stream. This can allow attackers to:
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Popularity: 63% [?]
Tags: aes, email security, hotspot, secure email, ssl, tls, wep, wireless, wpa
Posted in TechNotes
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