SetBody (Email subroutine)

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Add body content to the message (Email class)


email:SetBody( content, [Type= string], [Name= string], [Encoding= string])

Syntax terms

email An Email object.
content A Stringlist or Longstring that contains the actual e-mail body.

If a Stringlist is passed, each item in the Stringlist is delimited with a carriage-return/line-feed (CR/LF) character pair. To override this line-ending, you can specify a non-text content type as the value of the Type optional argument. In this case, no delimiter is added at the end of an item.

If a longstring is passed, no delimiters are added to the content.
Type This name required parameter specifies the MIME type of the content.

MIME content-type strings consist of a primary type and a subtype delimited by a forward slash ( / ) character, for example, text/xml.

SetBody performs no validity checking, but it does distinguish between text MIME types ("text"; is the primary type) and non-text types. If non-text, SetBody encodes the content in base64 format to ensure correct translation at SMTP gateways.

You can override this encoding by specifying the Encoding option set to the value none.
Name This name required parameter provides a name for the message body or a message part. This option is rarely used for the mail body, and it is usually ignored by the mail client. It is most often used for attachments, which are added with AddPart.
Encoding This name required parameter forces or suppresses encoding for the attachment.

Since base64 encoding is automatically enabled for any non-text content, the Encoding option is usually unnecessary. To enable base64 encoding for text content, specify encoding=base64. To disable encoding for non-text content, specify encoding=none.

Specifying encoding=none for non-text content is not recommended: the likely result is that the recipient receives corrupt data, or otherwise the SMTP gateway may simply discard the message.

Usage notes

  • The Type, Name, and Encoding options may be specified in any combination, but each may be specified only once.
  • Subsequent invocations of the SetBody method completely replace any existing content.


  • The following code fragment adds HTML text to the to the body of an SMTP message:

    ... %greet is object Email %sl is object Stringlist html to %sl <html> <h1> Hello world! </h1> </html> end html %greet:SetBody(%sl, type='text/html') ...

  • For more SetBody method examples, see "Basic e-mail example" and "E-mail with attachment".

See also