OSPOP3.dll is a COM library for Visual Basic 6, providing functionality to retrieve emails from mailserver (POP3).
By using OSPOP3.dll you agree to terms of License Agreement

for use with Visual Basic 6 (any edition):
1)download POP3_component.zip
2)unzip OSPOP3.dll from it to Windows System directory
3)run "regsvr32 OSPOP3.dll" from command-line

for use with .NET, Visual Basic 4 or 5, Visual C++, ASP, VBA, VBScript, JavaScript or any other language, supporting COM:
1)download POP3_component.exe
2)run downloaded file from Windows Explorer or command-line

Session object top object in component hierarchy: maintains connection to the mailserver, retrieves mailbox statistics and list of messages, retrieves and deletes messages

Methods:

object.ClosePOP3() closes POP3 session, disconnects from the server

object.DeleteMessage(MessageId As Long) deletes specified message from the server

object.GetMailboxSize() As Long returns mailbox size in octets (bytes)

object.GetMessage(MessageId As Long, [RemoveFromServer As Boolean = False]) As Message retrieves specified (by message ID) message from the server, optionally deletes it after retrieval

object.GetMessageCount() As Long returns number of messages in mailbox

object.GetMessageHeaders(MessageId As Long, [NumberOfLines As Long]) As Message retrieves headers for specified message, optionally retrieves specified number of lines from the top of the message body

object.GetMessageList() As Collection returns the list of available messages - collection of MessageListEntry objects

object.OpenPOP3([ServerName As String], [PortNumber As Long], [Login As String], [Password As String]) connects to server, authenticates and establishes POP3 session

object.ResetSession() resets current session to original state, undeletes all messages, deleted during current session

Properties:

object.Login returns/sets session login (username) for authenticating to mailserver

object.MailboxSize returns mailbox size in octets (bytes), retrieved by GetMailboxSize or GetMessageCount command

object.MessageCount returns number of messages in mailbox, retrieved by GetMailboxSize or GetMessageCount command

object.MessageList returns collection of MessageListEntry objects, retrieved by GetMessageList command

object.Password sets password for authenticating to mailserver

object.PortNumber returns/sets mailserver port number (by default - 110)

object.ServerName returns/sets server name or IP address

object.State returns session state. The following session state constants are defined: value name description 0 popClosed connection closed 1 popResolvingHost resolving mailserver name 2 popHostResolved mailserver name successfully resolved 3 popConnecting connecting to mailserver 4 popConnected connected to mailserver 5 popAuthenticating authenticating to mailserver 6 popAuthenticated successfully authenticated to mailserver 7 popClosing connection is closing 8 popError error occured

MessageListEntry object object in MessageList collection of Session

Properties:

object.ID returns message ID

object.Size returns message size in octets (bytes)

object.UIDL returns message UIDL (if supported by mailserver) - unique identifier assigned to message by mailserver

Message object returned by GetMessage and GetMessageHeaders functions, contains parsed email message

Methods:

object.Save(FILE_NAME As String) saves message to a specified location

Properties:

object.All returns entire message in original (.eml) format

object.Attachments collection of message attachments (Attachment objects)

object.Body returns message body

object.Charset returns message charset

object.ContentType returns message content type

object.DateSent returns message timestamp

object.Headers collection of message headers (Header objects)

object.HTMLBody returns HTML part of message body

object.Recipients collection of message recipients (Email objects)

object.Sender returns message sender (Email object)

object.Subject returns message subject

object.UIDL returns message UIDL (if supported by mailserver)

Header object member of Headers collection, populated by GetMessage or GetMessageHeaders functions

Properties:

object.Name returns header name

object.Values collection of string values, associated with header

Email object pair of name and email address assigned to message sender and recipients

Properties:

object.Address returns email address

object.Name returns name (optional)

Attachment object item in Attachments collection of message

Methods:

object.Save(FILE_NAME As String) saves attachment to a specified location. If attachment is Base64 encoded, it will be decoded before saving

Properties:

object.AttachmentName returns attachment name

object.Body returns attachment body

object.ContentDisposition returns content disposition header of attachment

object.ContentTransferEncoding returns type of attachment encoding

object.ContentType returns MIME type of attachment

object.Filename returns the original filename