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05.09.2008 at 12:08PM PDT, ID: 23390532
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8.9

Specify Content-Type for Attachment to CDO.Message in ASP Program

Asked by rkelso in Active Server Pages (ASP), Microsoft Excel Spreadsheet Software

Tags:

I have an ASP program that is sending an email with an Excel spreadsheet as an attachment.  The Excel spreadsheet attachment is actually just a dynamically-created html table (which Excel can interpret).

The email sends fine and the attachment (abcde.xls) works fine.  When opening the attachment however, Excel complains that the file is in a different format than that specified by the file extension.  The user than has the opportunity to click "Yes" and the file opens fine in Excel, but I'd rather not have the user experience that "warning" message if I can aviod it.

I'm assuming anyway that the lack of a proper content-type specification is the problem.  I'm trying to find a way to specifiy the content-type of the dynamically created html table so that Excel recognizes the attachment as being valid Excel.  So, I put this line as the first line in the attachment:

     Content-Type: application/vnd.ms-excel;

When I do this, the line above ends up being placed in the first cell of the attached spreadsheet.  Not exactly what I was after.  So the question is, how can I get that content-type recognized as a content type and not just the first line of the attachment "body"?

I've attached one of my Excel attachments from email and also a code snippet that I'm using to send the email with the attachment.

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Sub SendEmailWithAttachment(localFrom,localTo,subject,htmlContent,attachFile)
	Dim objSendMail,cdoConfig
	sch = "http://schemas.microsoft.com/cdo/configuration/"
	Set cdoConfig = Server.CreateObject("CDO.Configuration")
	cdoSendUsingMethod = "http://schemas.microsoft.com/cdo/configuration/sendusing"
	cdoSendUsingPort = 2
	cdoSMTPServer = "http://schemas.microsoft.com/cdo/configuration/smtpserver"
	cdoSMTPServerPort = "http://schemas.microsoft.com/cdo/configuration/smtpserverport"
	cdoSMTPConnectionTimeout = "http://schemas.microsoft.com/cdo/configuration/smtpconnectiontimeout"
	cdoSMTPAuthenticate = "http://schemas.microsoft.com/cdo/configuration/smtpauthenticate"
	cdoBasic = 1
	cdoSendUserName = "http://schemas.microsoft.com/cdo/configuration/sendusername"
	cdoSendPassword = "http://schemas.microsoft.com/cdo/configuration/sendpassword"
 
	cdoConfig.Fields.Item(cdoSMTPServer) = "192.168.1.211"
 
	With cdoConfig.Fields
		.Item(cdoSendUsingMethod) = cdoSendUsingPort
		.Item("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
		.Item(cdoSMTPServer) = "192.168.1.211"
		.Item(cdoSMTPServerPort) = 25
		.Item(cdoSMTPAuthenticate) = cdoBasic
		.Item(cdoSendUserName) = "xxxx"
		.Item(cdoSendPassword) = "xxxx"
		.Update
	End With
 
	Set objSendMail = Server.CreateObject("CDO.Message")
	With objSendMail
		Set .Configuration = cdoConfig
		.From = localFrom
		.Subject = subject
		.HTMLBody = htmlContent
	End With
	objSendMail.To = localTo
	objSendMail.AddAttachment(attachFile)
	objSendMail.Send
	Set objSendMail = Nothing
	Set cdoConfig = Nothing
End Sub
Attachments:
 
Whereabouts-for-Client-9May2008-.xls (73 KB) (Possible File Type Mismatch) 
Excel spreadsheet from email attachment with incorrect content-type specification
 
[+][-]05.09.2008 at 12:27PM PDT, ID: 21535771

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[+][-]05.09.2008 at 12:34PM PDT, ID: 21535808

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[+][-]05.09.2008 at 12:39PM PDT, ID: 21535857

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[+][-]05.09.2008 at 12:50PM PDT, ID: 21535926

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About this solution

Zones: Active Server Pages (ASP), Microsoft Excel Spreadsheet Software
Tags: ASP
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Solution Provided By: ruscomp
Participating Experts: 1
Solution Grade: B
 
 
[+][-]05.09.2008 at 12:58PM PDT, ID: 21535988

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