The problem of unsolicited e-mail has been increasing for years, but help has arrived. In this article, David discusses and compares several broad approaches to the automatic elimination of unwanted e-mail while introducing and testing some popular tools that follow these approaches.

The problem of unsolicited e-mail has been increasing for years, but help has arrived. In this article, David discusses and compares several broad approaches to the automatic elimination of unwanted e-mail while introducing and testing some popular tools that follow these approaches.

Unethical e-mail senders bear little or no cost for mass distribution of messages, yet normal e-mail users are forced to spend time and effort purging fraudulent and otherwise unwanted mail from their mailboxes. In this article, I describe ways that computer code can help eliminate unsolicited commercial e-mail, viruses,
trojans, and worms, as well as frauds perpetrated electronically and other undesired and troublesome e-mail. In some sense, the final and best solution for eliminating spam will probably take place on a legal level. In the meantime, however, you can do some things from a code perspective that can serve as an interim solution to the problem, until (if ever) the laws begin to evolve at the same rate as public frustration. Read the rest of this entry »

As you may know there is a lot of discussion going on out there regarding blog comment spam. In my opinion comment spam can be defined as a comment posted to a blog wich is not related with the content of your post. It will include a link in the comments field or in the name of the author to a commercial website. The problem is becoming serious as spammers are developing bots that can make dozens of post in an hour. We must stop this now or we´ll be the third spam generation victims after mail boxes and guestbooks.

Blog comment spam can´t be comprared yet with his big brother “email” but there is enough presence to be considered as a danger. MT doesn´t help too much cleaning your articles from spamming post so if you don´t want to spend an hour each day doing blog cleaning I recommend you to take action right now. They use bots to kill your blog but you don´t have a cleaning bot, remewmber this!. We must hit asap before this becomes a major problem. Some blacklists are ready to use and other methods are a good starting point. I have collected here some methods and solutions that blog owner are developing. I´ll add a brief description of each method and a link to the author´s website where you ca find more info. I don´t want to infright copyrighted material so you must get the original content from the authore´s website. Read the rest of this entry »

Ideology

It is clear that spam brings economic benefits to its customers. This means that users, despite the dislike of spam, does enjoy the services advertised through spam. Until the impact of spam exceeds the cost of overcoming protection, spam will not disappear. Thus, the surest way to fight a denial of service advertised through spam. There are proposals on the use of public condemnation, until the end of communication, against those who buy spam advertised goods and services.

Other methods are aimed at inhibiting the spammers access to users.

Preventive measures to protect

The surest way to fight spam ? do not let spammers get e-mail address. This is a difficult task, but some precautions can be taken.
Do not publish your email address on public websites.
If for some reason the email account to publish, it can be coded like ?u_s_e_r_ (a) _d_o_m_a_i_n_._n_e_t?. Spammers use special programs to scan websites and collect email addresses, so even a masking addresses can help. It should be remembered, however, that in the simplest cases ?encoded? will be able to recognize and address of the program. In addition, it is an inconvenience not only for spammers, but also for ordinary users. Read the rest of this entry »

Black lists

Ownership, use, efficiency
These include:
lists of IP-addresses of computers that are known to them being spam.
(widely used) lists of computers that can be used for distribution ? ?relei open? and ?open proxy?, and also ? lists ?dial? ? client addresses to which there can be no mail servers
(possible use), a local list or the list maintained by someone else.
(widely distributed through the simplicity of implementation), black lists, a request that is carried out via DNS. They are called DNSBL (DNS B lack L ist). Currently this method is not very efficient. Spammers find new computers to their goals faster than they manage to enter in the black lists. In addition, several computers, send spam, can compromise the entire email domain, or subnet, and thousands of law-abiding users for an indefinite period will be denied the opportunity to send e-mail servers, using a black list.
(found) lists rather preach radical theory (eg, equating to a viral malicious spam messages, etc.). Read the rest of this entry »

Other methods
The general tightening of the requirements for letters and senders, for example ? refusing to accept letters with the wrong return address (letters from non-existent domain), check the domain name to IP-address, which is a letter, etc. Through these measures eliminated only most primitive spam ? a small number of messages. However, it is not zero, so the meaning of their use remains.

Sort the letters on the contents of the letter header fields allows to get rid of a certain amount of spam. Some clients (eg, Mozilla Thunderbird or The Bat!) Provide an opportunity to examine the headers without downloading from the server all the email as well, and thus save bandwidth.
System type ?a challenge-response? to verify that the sender ? the person, not the robot software. Using this method requires the sender of the fulfillment of certain additional actions, often it may be desirable. Many such systems pose an additional burden on the postal system, in many cases, they send requests to fake addresses, it is in professional circles, such decisions are not respected. In addition, the system can not distinguish a robot spammers from any other, for example those that send news.

Systems to measure signs of mass communication, such as Razor and Distributed Checksum Clearinghouse. Built-in mail server software modules count checksums of each passing through them and check their email on the servers of Razor, or DCC, which reported the number of appearances letter on the Internet. If a letter appears, for example, tens of thousands of times ? perhaps this is spam. On the other hand, mass communication can be a legitimate mailing list. In addition, spammers can vary the text message, for example, by adding at the end of random characters. Read the rest of this entry »

The first thing to have is to block spam before it enters your inbox. The only risk to this practice is that any email rejected by your spam software will be lost for good. However, sometimes antispam software wrongAnd consider to be a legitimate email as spam.

First solution to dry up the spam at the source, set up SpamPal. This software will Prevent your solution (Outlook, Outlook Express or Thunderbird) to download the spam, Which will save you time to sort the mail left.

This type of spam filter is effective Particularly in the case of a mailbox heavily spammedFor Which the time spent sorting and deleting spam becomes a problem. Ultimately, the user will not mind one or two good messages deleted by accident a few thousand well understood.

Alternatively, methods of logical analysis of the spam, using software like SpamBayes working on the source of the e-mail to Detect Whether or not it is spam. Advantage of this technique: the filter is sometimes more intelligent, since it will be able to detect if you tell him several times to type emails casino spam, any content of this type should be redirected to your Deleted Items. If you delete all content in foreign languages, it will adopt the same attitude to handle spam …

Moreover, it is important to Ensure that its anti-spam solution has advanced functions overlap to detect spam The message contains links to external relatively unsafe formatted text, the sender is attached to a nonexistent domain name makes heavy use of certain HTML tags … All of which allow you to automate much of the processing of spam.