MailBee.NET Objects 4.0

Pop3.Connect Method (String, Int32, Boolean)

Connects to a POP3 server.

public bool Connect(
   string serverName,
   int port,
   bool pipelining
);

Parameters

serverName
The name or IP address of the POP3 server.
port
The port on which to communicate with the server. The standard POP3 port is 110. For TLS/SSL connections, dedicated port is 995 (however, TLS/SSL connections via regular port are possible too, see SslMode and StartTls topics).
pipelining
Specifies whether to use commands pipelining if it's supported by the server.

Return Value

true if a connection attempt succeeded; otherwise, false.

Remarks

If pipelining is true and the server supports pipelining, MailBee will join POP3 commands in batches whenever possible, providing major performance boost in scenarios when multiple messages are downloaded or deleted at once. The methods which take advantage of pipelining are: DownloadMessageHeaders, DownloadEntireMessages, DeleteMessages, and their asynchronous versions (BeginDownloadMessages, BeginDeleteMessages). The performance may increase 10+ times if many messages (20 and more) are processed.

Exceptions

Exception Type Condition
MailBeeException An error occurred and ThrowExceptions is true.

Example

This sample connects to the POP3 server, downloads headers for the first 5 messages, and displays them. If the server supports pipelining, all 5 message headers will be downloaded in a single round-trip to the server.

[C#]
// To use the code below, import MailBee namespaces at the top of your code
using MailBee;
using MailBee.Pop3Mail;
using MailBee.Mime;

// The actual code (put it into a method of your class)
Pop3 pop = new Pop3();
pop.Connect("mail.domain.com", 110, true);
pop.Login("jdoe", "secret");
MailMessageCollection msgHeaders = pop.DownloadMessageHeaders(1, 5);
foreach (MailMessage msgHeader in msgHeaders)
{
    Console.WriteLine("Message #" + msgHeader.IndexOnServer + ":\r\n" + msgHeader.RawHeader);
}
pop.Disconnect();
[Visual Basic]
' To use the code below, import MailBee namespaces at the top of your code
Imports MailBee
Imports MailBee.Pop3Mail
Imports MailBee.Mime

' The actual code (put it into a method of your class)
Dim pop As Pop3
pop.Connect("mail.domain.com", 110, True)
pop.Login("jdoe", "secret")
Dim msgHeaders As MailMessageCollection
msgHeaders = pop.DownloadMessageHeaders(1, 5)
For Each msgHeader As MailMessage In msgHeaders
    Console.WriteLine("Message #" & msgHeader.IndexOnServer & ":\r\n" & msgHeader.RawHeader)
Next
pop.Disconnect()

See Also

Pop3 Class | MailBee.Pop3Mail Namespace | Pop3.Connect Overload List