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SQL Server

Get IMAP Attachment Sizes

See more IMAP Examples

Demonstrates the Chilkat Imap.GetMailAttachSize method, which returns the size in bytes of an attachment. The first argument is the Email and the second is the zero-based attachment index. This example fetches headers only and prints each attachment's name and size.

Background: Like the attachment filename, the size comes from ckx-imap-* metadata and is available from a header-only fetch without downloading the body. A client can therefore show attachment sizes in a message preview, and decide whether to auto-download or prompt before pulling a large file.

Chilkat SQL Server Downloads

SQL Server
-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    DECLARE @iTmp0 int
    DECLARE @sTmp0 nvarchar(4000)
    DECLARE @success int
    SELECT @success = 0

    --  Demonstrates the Imap.GetMailAttachSize method, which returns the size in bytes of an
    --  attachment.  The 1st argument is the Email and the 2nd is the zero-based attachment index.

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

    EXEC sp_OASetProperty @imap, 'Ssl', 1
    EXEC sp_OASetProperty @imap, 'Port', 993

    EXEC sp_OAMethod @imap, 'Connect', @success OUT, 'imap.example.com'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @imap, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @imap
        RETURN
      END
    EXEC sp_OAMethod @imap, 'Login', @success OUT, 'user@example.com', 'myPassword'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @imap, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @imap
        RETURN
      END

    EXEC sp_OAMethod @imap, 'SelectMailbox', @success OUT, 'Inbox'
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @imap, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @imap
        RETURN
      END

    --  Fetch only the message headers.  Attachment bodies are NOT downloaded, but the ckx-imap-*
    --  metadata describing the attachments is present, so the attachment info methods still work.
    DECLARE @headersOnly int
    SELECT @headersOnly = 1
    DECLARE @useUid int
    SELECT @useUid = 0
    DECLARE @seqNum int
    SELECT @seqNum = 1
    DECLARE @email int
    EXEC @hr = sp_OACreate 'Chilkat.Email', @email OUT

    EXEC sp_OAMethod @imap, 'FetchEmail', @success OUT, @headersOnly, @seqNum, @useUid, @email
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @imap, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @imap
        EXEC @hr = sp_OADestroy @email
        RETURN
      END

    DECLARE @numAttach int
    EXEC sp_OAMethod @imap, 'GetMailNumAttach', @numAttach OUT, @email
    DECLARE @i int

    SELECT @i = 0
    WHILE @i <= @numAttach - 1
      BEGIN
        DECLARE @fname nvarchar(4000)
        EXEC sp_OAMethod @imap, 'GetMailAttachFilename', @fname OUT, @email, @i
        EXEC sp_OAGetProperty @imap, 'LastMethodSuccess', @iTmp0 OUT
        IF @iTmp0 = 0
          BEGIN
            EXEC sp_OAGetProperty @imap, 'LastErrorText', @sTmp0 OUT
            PRINT @sTmp0
            EXEC @hr = sp_OADestroy @imap
            EXEC @hr = sp_OADestroy @email
            RETURN
          END
        DECLARE @sz int
        EXEC sp_OAMethod @imap, 'GetMailAttachSize', @sz OUT, @email, @i


        PRINT @fname + ': ' + @sz + ' bytes'
        SELECT @i = @i + 1
      END

    EXEC sp_OAMethod @imap, 'Disconnect', @success OUT
    IF @success = 0
      BEGIN
        EXEC sp_OAGetProperty @imap, 'LastErrorText', @sTmp0 OUT
        PRINT @sTmp0
        EXEC @hr = sp_OADestroy @imap
        EXEC @hr = sp_OADestroy @email
        RETURN
      END

    EXEC @hr = sp_OADestroy @imap
    EXEC @hr = sp_OADestroy @email


END
GO