SQL Server

Fetch a POP3 Message's Raw MIME by UIDL

Demonstrates the Chilkat MailMan.FetchMimeBd method, which fetches an email from the POP3 server by UIDL and stores the raw MIME source bytes in a BinData. Chilkat clears the BinData before downloading. This example fetches one message's MIME into a BinData.

Background: Sometimes you want the message exactly as it arrived — the raw MIME bytes — rather than a parsed Email object, for example to archive it verbatim as a .eml file, forward it untouched, or hash it. Fetching into a BinData preserves every byte precisely, without any parsing or re-encoding that could alter the original.

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SQL Server

--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    --  Demonstrates the MailMan.FetchMimeBd method, which fetches an email from the POP3 server
    --  by UIDL and stores the raw MIME source bytes in a BinData.  Chilkat clears the BinData
    --  before downloading.

    DECLARE @mailman int
    EXEC @hr = sp_OACreate 'Chilkat.MailMan', @mailman OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    --  Configure the POP3 server connection.
    EXEC sp_OASetProperty @mailman, 'MailHost', 'pop.example.com'
    EXEC sp_OASetProperty @mailman, 'MailPort', 995
    EXEC sp_OASetProperty @mailman, 'PopSsl', 1
    EXEC sp_OASetProperty @mailman, 'PopUsername', 'user@example.com'
    EXEC sp_OASetProperty @mailman, 'PopPassword', 'myPassword'

    --  Fetch the raw MIME of a specific message by UIDL into a BinData.
    DECLARE @bdMime int
    EXEC @hr = sp_OACreate 'Chilkat.BinData', @bdMime OUT

    EXEC sp_OAMethod @mailman, 'FetchMimeBd', @success OUT, '0000000123abcdef', @bdMime
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @mailman, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @mailman
        EXEC @hr = sp_OADestroy @bdMime
        RETURN
      END


    EXEC sp_OAGetProperty @bdMime, 'NumBytes', @iTmp0 OUT
    PRINT 'MIME size (bytes) = ' + @iTmp0

    --  Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
    --  connects and authenticates -- using the property settings above -- whenever a server
    --  operation requires it.  Calling the explicit connect/authenticate methods can still be
    --  helpful to determine whether a failure occurs while connecting or while authenticating.

    EXEC @hr = sp_OADestroy @mailman
    EXEC @hr = sp_OADestroy @bdMime


END
GO