Enterprise mail server how to get rid of the blacklist-Linux Enterprise Application-Linux server application information, the following is a detailed description. "You have entered the blacklist !" Do you feel uncomfortable when you hear this? If an enterprise email server is blacklisted, I believe it will not only be unpleasant, but also cause troubles from various aspects. For example, if the recipient's server refuses to receive your email, the email is returned, Business Communication fails, the mailbox IP reputation is low, and the enterprise image is compromised. No one wants to blacklist their email servers. What should we do?
First, what causes your email server to enter the blacklist.
First, whether your email content contains sensitive spam words. For example, emails with too many quotation marks, exclamation marks, free calls, And uppercase letters can be easily filtered out by ISPs as spam emails, and "low score" for the credibility of your email IP address ".
Second, whether the email sending frequency is too concentrated and the content of all emails is extremely similar. It is quite easy for an email server that sends too frequently to attract the attention of the ISP. Once it detects that you send a large number of emails with the same content, it is inevitable to doubt your email server.
Third, the server is infected with spam virus, causing others to control the server and perform a large number of illegal operations.
When your email server is blacklisted, it must be because your email IP Address has sent a large number of spam messages, whether you are active or passive (third-party theft ), ISP will not erase your email server for no reason.
Next, we will summarize how to get rid of the bad luck.
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For more information, see the attachment.
