Iterate Email Headers

Demonstrates how to iterate over the email header fields.

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CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @email int
    EXEC @hr = sp_OACreate 'Chilkat.Email2', @email OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    --  First, load an email from a file.
    --  Note: an email object may be loaded from a file, or
    --  downloaded directly from a POP3 or IMAP server...
    DECLARE @success int

    EXEC sp_OAMethod @email, 'LoadEml', @success OUT, 'testReceivedHdrs.eml'
    IF @success <> 1
      BEGIN
        EXEC sp_OAGetProperty @email, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        RETURN
      END

    --  How many header fields?
    DECLARE @n int

    EXEC sp_OAGetProperty @email, 'NumHeaderFields', @n OUT

    IF @n > 0
      BEGIN

        --  Display the name and value of each header:
        DECLARE @i int

        DECLARE @name nvarchar(4000)

        DECLARE @value nvarchar(4000)

        SELECT @i = 0
        WHILE @i <= @n - 1
          BEGIN
            EXEC sp_OAMethod @email, 'GetHeaderFieldName', @name OUT, @i
            EXEC sp_OAMethod @email, 'GetHeaderFieldValue', @value OUT, @i

            PRINT STR(@i)

            PRINT @name

            PRINT @value

            SELECT @i = @i + 1
          END

      END
END
GO