is server blacklisted

There are many spam advisory databases on the Internet, such as Spamhaus.For example, to query whether IP 1.2.3.4 is blacklisted by ahbl.org, you can use the following commandNslookup 4.3.2.1.dnsbl.ahbl.orgIf the returned result is non-existent

The word blacklist has been used for a long time and has different purposes in different scenarios. For example, in QQ, you can drag a guy you don't like or hate from a friend to the blacklist with the mouse, so that he can no longer harass you.

The company's Domino Mail Server was recently attacked by spamhaus In the XBL blacklist. The situation was urgent and all emails sent from the company to foreign customers were rejected, however, rejected emails are delayed in the shuttle fish spam

通常，我们可能因为某些用户发送了一些非常规邮件，邮件出口地址被一些权威网站列入黑名单，导致大量业务邮件无法正常发送。 这时候，我们可以通过powershell写一些关于IP地址检测的脚本，并列入计划任务，最大程度上降低邮件出口地址被列入黑名单产生的业务影响，脚本内容如下：#获取页面信息$web = (invoke-webrequest

  Spam has become a serious problem. In order to win the war against spam, we use 18 weapons. The Blacklist, whitelist, and gray list should be the most basic tools in this battle against spam, this article will elaborate on how enterprises can

Troubleshooting methods for enterprise mail servers that are frequently blocked by spamhaus anti-spam organizations In fact, in the process of enterprise mail platform management, enterprise mail administrators are often troubled by a variety of

  In ubuntu and debian, the main functional modules of apache2 (MPM) are divided into different software packages: Apache2-mpm-event: event-driven MPM; Apache2-mpm-perchild: This is just a transitional "fake" software package that relies on

Verify the impact of DNS hijacking on RBL-Linux Enterprise Application-Linux server application information. Verify the impact of DNS hijacking on RBL Some time ago, the RBL of the barracuda firewall was abnormal. It regarded all IP addresses

Wu-ftpd server configuration manual-Linux Enterprise Application-Linux server application information. The following is a detailed description. 1. Select and install FTP server software If you select "ftpd" when selecting to start the process

The most direct and effective way to effectively reject spam from Malicious spam source sites and/or from the exploited spam source site is to reject the connection from this source. Theoretically, this may also reject normal emails from the site,