best free anti spam software

using the features provided by the discuz background for related settings. The reason why the plug-in installation method is not recommended is that you have to pay a certain amount of fee, and even the free effect is not that ideal. Therefore, the best and most environmentally friendly method is to modify some default values of discuz. Follow the instructions below.1. Modify the default registration addressSet the mod value of the site registration

Editor's note: Machine devices naturally have unsolved problems. Security products are used to enhance network security performance and prevent internal/external attacks. There is a common problem in security products-false positives, such as false positives and false positives of anti-virus software. In fact, there is no absolute security. Security and application are a contradiction. Security Enhancement

received. The whitelist is the main method to filter received emails. If someone in the whitelist sends you an email, the email enters your inbox. If the sender is not in this list, the email will be questioned or blocked to another specific email address. The above filter revision process is not required for whitelist products. This type of anti-spam products determine which emails are allowed and which e

query and regional transmission of the blacklist server are not free to use. Some servers are available to anyone for query and regional transmission, while some are only available to specific users. Currently, most mainstream email servers support real-time blacklist services, such as Postfix, Qmail, Sendmail, and IMail. Blacklist service provision and blacklist maintenance are provided and maintained by the blacklist service provider. Therefore, th

In the last two weeks of May, the National Internet (www. now.cn) has cleared nearly 8,100 sites for spam, based on a list of complaints filed by Castlecops.com. It is reported that Castlecops.com is a volunteer security community, its focus is to promote the Internet more secure, to achieve global Internet agencies to share information, and jointly combat spam sites. All public services provided by the A

The mail system is an important part of Linux network applications. The complete mail system includes the underlying operating system, the Mail sending proxy MTA, the mail distribution proxy MDA, and the Mail User proxy MUA. Currently, the main danger facing the Linux email system is spam, Linux virus, and DoS attacks. This article focuses on Linux Emails The mail system is an important part of Linux network applications. The complete mail system incl

The mail system is an important part of Linux network applications. The complete mail system includes the underlying operating system, the mail sending proxy MTA, the mail distribution proxy MDA, and The Mail User proxy MUA. Currently, the main danger facing the Linux email system is spam, Linux virus, and DoS attacks. This article focuses on Anti-Spam policies f

　　 Outlook Express and Foxmail use LOGIN authentication, While Netscape Mail uses PLAIN authentication. 　　 　　 Client settings 　　 In the Outlook Express main window, click the "tools (T)" menu and select "Account (A)" from the drop-down menu )". In the "Internet account" window, select an email account and click "properties (P )". In the displayed account "properties" window (SEE), select the "servers" tab and select "my servers require authentication (V )". Click the "Settings (E)" button next

account "properties" window (see figure 3), select the "servers" tab and select "my servers require authentication (V )". Click the "Settings (E)" button next to it. In the "external mail server" window, select "use the same settings (U) as the receiving mail server )". After you press "OK", the settings are complete. Figure 1: Outlook Express SMTP Authentication Settings (4) use special tools to prevent spam In addition to sendmail's built-in funct

filter is now an integral part of any e-mail infrastructure. The spam filter is divided into three categories, software, devices, and management services. Many solutions bundle Anti-Virus, content filtering, messaging firewalls, and other functions onto a single platform. Administrators can "adjust" filters based on enterprise policies and tolerance of false pos

Next, let's take a look at the article about how to configure Amavisd-new to skip the anti-spam check in this region. I hope this article will help you. Amavisd-new is a very powerful anti-spam software, but many times we need to skip an