MX Component [IP*Works! V8]
Properties
Methods
Events
Configuration Settings
The MX component enables querying of mail exchange (MX) records from a
Domain Name Server (DNS). That is, it will find out the name(s) of the
mail server(s) accepting email for a given email address or domain.
NOTE: What follows is a very short description of the component interfaces.
For more information, please consult the help files that come with the respective package.
Remarks
The component will attempt to automatically determine the name of a DNS server
from the system settings or from the value of the DNSServer property.
The component operates in synchronous or asynchronous mode, depending on the
value of the Timeout property. Calling the Resolve method makes the component
query the DNSServer. The Response event is fired for each server
that handles mail for the email address. The component will fill out the MailServer
property with the most preferred mail server and the Status property to
"Ok" or an error message.
The RequestId property may be used to identify requests and is used in the Response
event. The user may set its value before sending out requests, and then match the responses to
the request using the RequestId parameter in the Response event.
Property List
The following is the full list of the properties of the component with short
descriptions. Click on the links for further details.
| |
| DNSPort | The port where the DNS server is listening. |
| DNSServer | The address of the DNS server. |
| Idle | The current status of the component. |
| LocalHost | The name of the local host or user-assigned IP interface through which connections are initiated or accepted. |
| MailServer | Mail server with lowest precedence value (lowest cost to reach). |
| RequestId | Identifies each request. |
| Status | Status of the request is empty while in progress, 'OK' or error message upon completion. |
| Timeout | A timeout for the component. |
Method List
The following is the full list of the methods of the component with short
descriptions. Click on the links for further details.
| |
| Config | Sets or retrieves a configuration setting. |
| DoEvents | Processes events from the internal message queue. |
| Interrupt | Interrupt the current method. |
| Resolve | Resolves an email address. |
Event List
The following is the full list of the events fired by the component with short
descriptions. Click on the links for further details.
| |
| Error | Information about errors during data delivery. |
| Response | Fired for each MailServer accepting email for the domain. |
Configuration Settings
The following is a list of configuration settings for the component with short
descriptions. Click on the links for further details.
| |
| MaxPacketSize | The maximum length of the packets that can be received. |
| ShareLocalPort | If set to True, allows more than one instance of the component to be active on the same local port. |
| UseConnection | Determines whether to use a connected socket. |
| QOSTrafficType | Used to specify QOS/DSCP settings (optional). |
| UseIPv6 | Whether or not to use IPv6. |
| AbsoluteTimeout | Determines whether timeouts are inactivity timeouts or absolute timeouts. |
| FirewallData | Used to send extra data to the firewall. |
| InBufferSize | The size in bytes of the incoming queue of the socket. |
| OutBufferSize | The size in bytes of the outgoing queue of the socket. |
| CodePage | The system code page used for Unicode to Multibyte translations. |
