Posts Tagged ‘smtp’
Tuesday, May 19th, 2009
 Users of LuxSci’s High Volume Outbound Email Service send thousands of messages to opt-in distribution lists of clients and subscribers. However, as with any bulk mailing, there are always permanent failure bounces due to addresses that are no longer valid or other issues. Usually, managing these bounces is somewhat of a challenge; however, prompt removal of invalid email messages is one requirement of good netiquette when sending bulk mailings.
LuxSci offers a free tool to assist you in managing your email bounces:
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Tags: bounce, bounce message, bulk mailing, high volume, mailing list, return path, smtp
Posted in Business Solutions
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Monday, May 18th, 2009
 LuxSci’s authenticated smart hosting service has been enhanced to provide full compatibility with outbound SecureLine automatic email encryption, per-user taglines, per-user sending limits, per-user SMTP usage auditing, and more. It also makes integration with your existing email server or Exchange server very easy.
This new “intelligent” smart hosting feature takes the stream of inbound email coming from your server through a single LuxSci SMTP user and determines which actual user is sending the message, based on the “From” address in the message headers. The message is then treated as if it was sent by and authenticated by the LuxSci user with that address.
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Tags: encryption, exchange, smart host, smart hosting, smarthost, smtp
Posted in New Feature Announcements
2 Comments »
Saturday, March 14th, 2009
LuxSci has updated its tracking, analysis, and logging of SMTP outbound email traffic to include:
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Tags: report, smp limits, smtp
Posted in New Feature Announcements
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Saturday, March 14th, 2009
 You thought email was a simple concept, but you are at once confronted with a plethora of acronyms and jargon like POP, IMAP, WebMail, Aliases, Forwards, SMTP, IMAP, POP, Quota, SPAM, TLS, SSL, Archival, and more! This article describes the ins and outs of email, explains these terms, and helps you figure out what services and features you need from your personal or business email service provider.
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Tags: autoresponder, catch-all alias, email, email alias, email archival, email clients, email provider, imap, imaps, Internet Mail Access Protocol, personality, pop, pop3, pops, Post Office Protocol, private labeling, secure imap, secure pop, secure SMTP, security, Simple Mail Transport Protocol, smtp, smtp authentication, SMTP relaying, smtp server, spam, ssl, tls, web-based email, webmail
Posted in AAA Featured Articles, LuxSci Library: The Technical Side of Email, TechNotes
1 Comment »
Friday, March 13th, 2009
Section 1: Introduction to Email Security
 You may already know that email is insecure; however, it may surprise you to learn just how insecure it really is. For example, did you know that messages which you thought were deleted years ago may be sitting on servers half-way around the world? Or that your messages can be read and modified in transit, even before they reach their destination? Or even that the username and password that you use to login to your email servers can be stolen and used by hackers?
This article is designed to teach you about how email really works, what the real security issues are, what solutions exist, and how you can avoid security risks.
Information Security and integrity are becoming more important as we use email for personal communication and business. While you are reading this article imagine how security problems can affect your business or personal life…. if they have not already.
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Tags: asymmetric encryption, eavesdropping, email security, false messages, http, identity theft, imap, invasion of privacy, message modification, Message Replay, opportunistic TLS, pgp, pop, repudiation, s/mime, Simple Mail Transport Protocol, smtp, SMTP relaying, smtp server, ssl, ssl certificate, symmetric encryption, tls, Unprotected Backups
Posted in AAA Featured Articles, LuxSci Library: Security and Privacy, TechNotes
14 Comments »
Monday, March 9th, 2009
 We have seen a steadily growing demand from existing and potential clients to send legitimate bulk mailings to their clients and subscribers. LuxSci’s policy has always been to deny such requests and pass them along to a strategic partner, or to allow them on a case by case basis at a premium cost after carefully reviewing the intent. Why? So that the outbound email servers used by our premium customers do not get on blacklists. You don’t want to mix mass mailing with normal business correspondence!
To meet this demand, LuxSci now offers the High Volume Outbound Email Service.
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Tags: bulk mailings, high volume, mailing list, mass mail, outbound email, smtp, smtp services, subscriber
Posted in New Feature Announcements
1 Comment »
Tuesday, February 3rd, 2009
 Frequently, we are asked to verify if an email that someone sent or received was encrypted using SMTP TLS while being transmitted over the Internet. For example, banks, health care organizations under HIPAA, and other security-aware institutions have a requirement that email be secured at least by TLS encryption from sender to recipient. This can and should be locked down to ensure that the email message content cannot be eavesdropped upon. This check, to see if a message was sent securely, is fairly easy to do by looking the the raw headers of the email message in question. However, it requires some knowledge and experience. It is actually easier to tell if a recipient’s server supports TLS than to tell if a particular message was securely transmitted.
To see how to analyze a message for its transmission security, we will look at an example email message sent from Gmail to LuxSci, and see that Gmail does not use TLS when sending messages, even when it can. This indicates that Gmail is probably not a service to be used when you have any kind of encryption requirements.
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Tags: bank, gmail, google, headers, hipaa, mx logic, private, received, secure, security, smtp, ssl, tls, transmission
Posted in LuxSci Library: Security and Privacy, TechNotes
3 Comments »
Wednesday, January 28th, 2009
 We are observing growing numbers of users trying to send legitimate email messages only to be blocked because the IP address that they are getting from their Internet Service Provider (ISP) for their personal computer is on some major blacklist, like SpamHaus. Comcast, for example, has been the focus of many of these issues lately. This message blocking often happens even if a user is sending outbound email through a legitimate email provider like LuxSci.
Users invariably ask:
- Why is the mail blocked even though I am sending through LuxSci or some other email provider and not directly from my ISP?
- What can I do about it?
Fortunately, there is a good reason why the blocks occur and an easy solution to them … with LuxSci’s anonymous SMTP service.
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Tags: alternate port, anonymous, blacklist, block, blocked, comcast, ip address, isp, port, port 25, private smtp, received, sending email, smtp, spam, spamhaus
Posted in Business Solutions, LuxSci Library: The Technical Side of Email
5 Comments »
Wednesday, January 21st, 2009
 The iPhone from Apple is an amazing Smart Phone, if not a mini personal computer in itself. We at LuxSci have been using iPhones since they were first available in 2007 and we have optimized our Xpress WebMail portal with a mobile-centric interface inspired by the iPhone and come out with MobileSync push email and contact/calendar sync services that work beautifully with iPhone and other mobile devices. Many of our clients use an iPhone or other Internet-enabled mobile device with our email services. The time seems right to share some of our knowledge and experience with iPhones.
Tags: aes, imap, imap idle, imap push, iphone, iphone 3g, mail.app, mobile, pop, ports, smtp, touch, web-based email, wifi
Posted in LuxSci Library: Email Programs and Devices, TechNotes
2 Comments »
Sunday, January 18th, 2009
LuxSci has doubled the maximum size of messages that can be sent or received via SMTP from 50 megabytes to 100 megabytes (encoded size).
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Tags: attachment, large attachments, large files, limit, maximum size, message size, size, smtp
Posted in New Feature Announcements
2 Comments »
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