| DnsServer Class |
Represents a DNS server to be queried about domain names of the Internet hosts.
Inheritance HierarchyNamespace: MailBee.DnsMX
Assembly: MailBee.NET (in MailBee.NET.dll) Version: 12.5.0 build 687 for .NET 4.5
SyntaxThe DnsServer type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | DnsServer |
Initializes a new instance of the DnsServer class with "127.0.0.1" (localhost) IP address,
and assigns the top priority to this instance.
|
| DnsServer(String) |
Initializes a new instance of the DnsServer class with the given IP address string,
and assigns the top priority to this instance.
|
| DnsServer(String, Int32) |
Initializes a new instance of the DnsServer class with the given IP address string
and priority value.
|
Methods| Name | Description | |
|---|---|---|
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| Reset |
Resets failure count to 0.
|
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
Properties| Name | Description | |
|---|---|---|
 | FailureCount |
Gets the number of repeated failures of the DNS server.
|
| Host |
Gets or sets an IP address of the DNS server as string.
|
| IP |
Gets an IP address of the DNS server as IPAddress.
|
| Priority |
Gets or sets a value of the preference of the DNS server. Lower values are preferred.
|
| TcpTimeout |
Gets or sets the amount of time (in milliseconds) the system will wait for TCP message to be sent or received
before the operation times out.
|
| TryTcp |
Gets or sets if MailBee can make DNS queries via TCP.
|
| UdpRetryCount |
Gets or sets a value of the maximum number of times to attempt to connect
to the DNS server using the UDP protocol.
|
| UdpTimeout |
Gets or sets the amount of time (in milliseconds) the system will wait for UDP message to be sent or received
before the operation times out.
|
RemarksMailBee uses instances of this class in order to lookup MX records of the Internet hosts. For example, Smtp component can perform MX lookup queries in direct-send scenarios (sending e-mails without SMTP relay server).
You can also perform DNS MX, TXT and PTR/rDNS queries expilicitly. See Smtp methods like GetMXHosts(String), GetPtrData(String) and GetTxtData(String) for details.
RblFilter class uses DNS servers to query RBL databases.
See Also