The text was still present but the email client rendering simply read to the end of the base64 content per the encoding declarative. If you look at the raw content you can still see the text is present, but it's not rendered by the clients. Since this is erroneous but legal content, there is no guarantee as to how your recipients may see the content.
They may get the same results I did, they may get errors, and they may get something else entirely. Thus it is essential you take care to ensure your attachments are properly bounded and the content between each boundary is correct. In most situations, you will have no control over what the recipient's email client will be or how they will have it configured.
If you've ever gotten email that you thought looked strange because it had images in strange places or the text was ill-formatted then you have already seen what happens when the sender expects the receiver's client to behave a certain way and that assumption is false. So, you should take that into account when you attempt to format your email structure, especially with respect to your MIME content.
In all examples above I have used "Content-Disposition: attachment" the other option is "Content-Disposition: inline".
The most common use for this functionality is with images so you can put pictures within a text body, thus allowing you to see the image as you read the email. However, not all clients observe the inline disposition reliably, they may still represent the content as an attachment, or they may represent it both inline and as an extractable attachment.
I also tend to avoid embedding images or other content as inline. As an example, I used the following block to send to different clients. One rendered the text first then the image, both inline but in reverse order to the way they were sent in the body of the email. Another represented the text both inline and as an attachment, the image was included but, despite the "inline" disposition was rendered as an attachment only. You will need to experiment with your clients to determine which methods are best supported.
So, even though it may be preferable to occasionally inline attachments, since it's not reliable, you may want to avoid it. As promised earlier, in the code blocks below are procedures to allow for easier sending of attachments. Similarly the message text is also a CLOB type. However, this does require more code. The first is a plain text message body, the second is a BLOB image and the third a text file. Have a question about something in this article?
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Add a comment. Active Oldest Votes. Improve this answer. Harrison Harrison 8, 1 1 gold badge 30 30 silver badges 28 28 bronze badges. Data-Base; added some comments, mainly make sure that there the attachments are at the end of the email, right before the closing of the email. Any idea why might cause to receive only 1KB from my attachment? Is there a difference between attaching a text file and attaching a PDF to an Oracle e-mail? Answer: There are several ways to send an attachment for an Oracle e-mail.
The PDF can become an e-mail attachment in several ways.
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