Attaches a file or adds a header to an e-mail message.


Communications tags, Internet protocol tags


    to = "recipient" 
    subject = "message subject" 
    from = "sender" 
        more attributes... > 
        contentID = "content ID" 
        disposition = "disposition type"> 
        file = "filename"  
        type ="media type" 
        name = "header name" 
         value = "header value"> 
Note: You can specify this tag’s attributes in an attributeCollection attribute whose value is a structure. Specify the structure name in the attributeCollection attribute and use the tag’s attribute names as structure keys.

See also

cfmail, cfmailpart, cfftp, cfhttp, cfldap, cfpop; Using the cfmailparam tag in Sending and Receiving E-Mail in the Developing ColdFusion Applications


ColdFusion MX 6.x: Added the Disposition and ContentID attributes.

ColdFusion MX 6.1: Added the type attribute.








The Identifier for the attached file. This ID must be globally unique and is used to identify the file in an IMG or other tag in the mail body that references the file content.




How the attached file is to be handled. Can be one of the following:

  • attachment: presents the file as an attachment.

  • inline: displays the file contents in the message.


Required if you do not specify name attribute

Attaches a file in a message. Mutually exclusive with name attribute. The file is MIME encoded before sending.


Required if you do not specify file attribute

Name of header. Case-insensitive. Mutually exclusive with file attribute.



The MIME media type of the file. Not used with the name attribute. Can be a valid MIME media type or one of the following:

  • text: specifies text/plain type.

  • plain: specifies text/plain type.

  • html: specifies text/html type.

If you specify the type, the value you specify becomes the content type header; otherwise, ColdFusion generates the content type header.

Note: For a list of all registered MIME media types, see



Value of the header. Not used with the file attribute.


This tag attaches a file or adds a header to an e-mail message. It can only be used in the cfmail tag. You can use multiple cfmailparam tags within a cfmail tag.

You can use this tag to include a file, such as an image, in an HTML mail message. The file can be displayed inline in an HTML message, or as an attachment, as Example 2 shows. To include multiple files, use multiple cfmailparam tags.

Display a file inline in a mail message

  1. Specify type="html" in the cfmail tag.

  2. Specify disposition="inline" and a ContentID attribute in the cfmailparam tag.

  3. Use a src="cid:ContentIDValue" attribute to identify the content to include in the HTML tag such as the img tag.


Example 1: This view-only example uses the cfmailparamtag to add a header to a message, attach files, and to return a receipt to the sender.

<cfmail from = "" To = ""  
    Subject = "See Important Attachments and Reply"> 
    <cfmailparam name = "Importance" value = "High"> 
    Please review the new logo. Tell us what you think. 
    <cfmailparam file = "c:\work\readme.txt" type="text/plain"> 
    <cfmailparam file = "c:\work\logo.gif" type="image/gif"> 
    <cfmailparam name="Disposition-Notification-To" value=""> 

Example 2: This view-only example displays an image in the body of an HTML message.

<cfmail type="HTML" 
        to = "#form.mailto#" 
        from = "#form.mailFrom#" 
        subject = "Sample inline image"> 
    <cfmailparam file="C:\Inetpub\wwwroot\web.gif"  
    <p>There should be an image here</p> 
    <img src="cid:image1"> 
    <p>After the picture</p>