error message 550

Original issue background:A few days ago, ops colleagues suddenly found that Zabbix monitoring no longer send mail, and Zabbix monitoring interface status can be displayed. Because there have been similar problems, estimated to be 163 mailbox

"550 5.7.1 unable to relay for XXX" error in lumisoft Mail Server This error occurs when I explore lumisoft Mail ServerSource codeIn the process, it severely plagued me for a week. Fortunately, I am still very resilient to find the cause and

Prerequisites:Vsftp has been configured last night, But after login, you cannot do anything except browsing. (For example, new files/folders, delete files, and rename files cannot be operated.) the error message "550 create directory operation

List of common error reports for Linux email servers-Linux Enterprise applications-Linux server application information. For details, refer to the following section. Server 400 Error Report Q: 421 Server too busy A: Unable to connect because the

Here is a detailed list of Ajax parameters in jquery: Name of parameter Type Describe Url String (Default: Current page address) sends the requested address. Type String

 Table (1) SMTP CodeCode definition421 service not available, hosts in the closing transmission channel brackets cannot provide normal services, close the transmission pipeline, and emails will be stuck on the host450 requested mail action not taken:

Recently in the mail to send the interface to the problems encountered and solutions to tell you want to know the message to help people The original program part of the code is as follows Set mail message sender address, recipient address,

Technorati Tags:1xx-Information TipsThese status codes represent a temporary response. The client should be prepared to receive one or more 1xx responses before receiving a regular response.100-Continue.101-Switch protocol.2xx-successThis type of

HTTP error Code table all HTTP status codes and their definitions.Code indication2XX success200 normal; The request is complete.201 Normal; Immediately after the POST command.202 normal; Accepted for processing, but processing is not yet complete.203

HTTP 400-invalid request HTTP 401.1-unauthorized: Logon Failed HTTP 401.2-unauthorized: logon fails due to server configuration problems HTTP 401.3-ACL prohibit Resource Access HTTP 401.4-unauthorized: Authorization denied by filter HTTP 40