I'm sending base64 encoded images in a markdown newsletter to different email services from a rich text editor. Every service renders the images properly except gmail. Instead it displays the base64 string:
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAACLQAAAxOCAYAAAD0p7d8AA...
The main SO thread regarding this problem does not provide a solution, as can be seen in the comments of the accepted answer.
How does one display images from a data string in gmail? Is it possible to insert a transformation layer to make it work? (I can't believe gmail doesn't support this after 6 years)
Gmail does not support embedded Base 64 images (see Can I email). I believe this is for general security reasons. You either need to generate your image server side. Or send it as an attachment (like in the other post you mentioned).
Related
I've been trying to solve this issue for a week now, and so far not so good.
An XPages application mimics an email client, with a <xp:inputRichText> connected to a RichText field in a Form. Nothing out of the ordinary.
When an image file gets embedded via the Insert Image button on CKEditor, and the filename has non-ASCII characters, the resulting MIME bodies register discrepant names, breaking the mail.
In this case, the original filename was atenção.jpg, but names get messy on Body field.
I sincerely appreciate any advice
I did a few tests and I see inconsistencies even in v12. Strangely, the Notes client seems to be able to open such emails. (I tried external email on v9.0.1 and Outlook could not display the image).
As Per suggested, you should open a support case with HCL. They have implemented some fixes in this area recently for 12.0.2.
I'm using TinyMCE for richtext editing in a webmail client. Suddenly, after years and years of begging us to build something like this, customers are able to paste images directly from the clipboard in tiny. While I always try to achieve to be as smart as Google, I immediately logged in to my Gmail account and started pasting away.. Yep, paste also worked in Gmail and, yep, images were also broken in the sent e-mail.
Here is a shortened part of the html, as generated by firefox after pasting my screenshot into the textarea:
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAABDgAAA<andsoonfor100k>"/>
I have to say, I'm very excited about this new feature, but I cannot seem to find anything (literally!) about this topic, so any suggestions about when this was added to firefox, or even how to make this actually work in e-mail clients will be really appreciated!
This is a bit old, but this was added to Firefox since version 4, and Thunderbird (sort-of) since version 6 (it seems it could read them since version 3).
In the case of Thunderbird, even if Thunderbird support Data URIs, other email clients may not, so Thunderbird convert them to classic MIME attachments (with CIDs as URL).
In the case of GMail, as of today (march 2013), pasted image data is included as data URIs, while drag-and-droped images (at least in Linux, with Gnome, from Nautilus to Firefox) include them as common MIME attachments. So, if you send an email with a data URI image, some email clients will display it correctly, some will not. (Ironic thing, Gmail cannot display them, at least not with Firefox and Chrome).
BTW, in Thunderbird at least, as the data URI don't have full information about the image, if you try to save it you need to provide the name or use the "image.jpeg" generic name.
Information about Data URIs:
https://www.rfc-editor.org/rfc/rfc2397
http://en.wikipedia.org/wiki/Data_URI_scheme
Information about how to remove or convert Data URIs from pasted data in CKEditor (some people don't like them for some [valid] reasons):
http://ckeditor.com/forums/Plugins/ImagePaste-plugin-for-Firefox
http://dev.ckeditor.com/ticket/8208
So, there is much information, maybe just searching for "data uri" would return more results.
I've got this email today with a big image displayed on it and with no option to hide the images on that email: http://clip2net.com/s/1xo7u
By default Gmail does not display images from unknown senders, and always display options to display or hide the images from the email. Who did these guys bypassed Gmail's image filter?
Is there a known way to force your images to be displayed when sending newsletters?
Before you close my question as off-topic, please let me argue that this is a programming related issue because automated newsletters are a very common requirement in web programming projects, and myths of people (spammers) being able to force images to display are to be confronted frequently by software developers.
I'm pretty sure that at present (this may change) that as long as the image is embedded into the mime message and is marked as inline Google Mail will display in the message. This may or may not apply to different mail clients.
We do this when we send out status emails to include the icons that we display within a table in the email content. If the images are not referenced by the message content then the images appear as attachments. However, if the images are referenced then they're not listed as attachments and are displayed inline.
Inline images don't pose a threat from spammers because they're not making a call to an external server and are therefore not trackable. You can do this in your app by setting the attachment mime headers (content disposition and content-ID) such as:
Content-Disposition: inline;
filename=image.png
Content-ID: <4f22bc6ab05be_17a1dcc610ac#b456a124-73ac-499f-932e-7f76089dbbb4.mail>
and then reference it using:
<img src="cid:4f22bc6ab05be_17a1dcc610ac#b456a124-73ac-499f-932e-7f76089dbbb4.mail" />
This is not possible, you can never force the client to do so. Since those are security measures the developers of the e-mail applications will not allows you to override the usersettings.
Make the image into ascii art :-)
We want to be able to show our logo, but it always comes out with "Download Image" prompt instead of showing the email in the body..
Emails are built using the Oracle Mail_pkg... How do I add the image to the HTML body so that it shows without a user having to download the image like it's an attachment? (also want to show it in blackberry)
I know it's possible since if you add an image to the outlook signature, you can see those pictures on outlook and blackberry
Along with a nice answer sleske provided I can suggest you to create a message you want to look like in Outlook or elsewhere, take a look at the message source and try to reproduce it in Oracle.
Also bear in mind that using utl_mail package you can send messages with body only 4 000 chars long (the size of varchar2 type in SQL). I can suggest you try utl_smtp package, though it requires a little more coding and accuracy, it gives you much more flexibility in creating fancy e-mails.
You need to include the image itself inside the email, usually as an attachment.
To have it show inside the email, you need to link to the attachment from inside your email. This is commonly done using the cid scheme.
See e.g. http://mailformat.dan.info/headers/mime.html for more information.
Or straight to the source:
Content-ID and Message-ID Uniform Resource Locators
I am a complete novice to Flash (never created anything in flash). I am quite familiar with web applications (J2EE based) and have a reasonable expertise in Javascript.
Here is my requirement.
I want the user to select (via an html form) an image. Normally in the post, this image would be sent to server and may be stored there to be served later. I do not want that. I want to store this image locally and then serve it via HTTP to the user.
So, the flow is:
1. Go to the "select image url":mywebsite.com/selectImage
Browse the image and select the image
This would transfer control locally to some code running on the client (Javascript or flash), which would then store the image locally at some place on the client machine.
Go to the "show image url": mywebsite.com/showImage
This would eventually result in some client code running on the browser that retrieves the image and renders it (without any server round trips.)
I considered the following options:
Use HTML5 local storage. Since I am a complete novice to flash, I looked into this. I found that it is fairly straightforward to store and retrieve images in javascript (only strings are allowed but I am hoping storing base64 encoded strings would work at least for small images). However, how do I serve the image via http url that points to my server without a server round trip? I saw the interesting article at http://hacks.mozilla.org/category/fileapi/ but that would work only in firefox and I need to work on all latest browsers (at least the ones supporting HTML5 local storage)
Use flash SharedObjects. OK, this would have been good - the only thing is I am not sure where to start. Snippets of actionscripts to do this are scattered everywhere but I do not know how to use those scripts in an actual html page:) I do not need to create any movies or anything - just need to store an image and serve it locally. If I go this route, I would also use it to store other "strings" locally. If you suggest this, please give me the exact steps (could be pointers to other web sites) on how to do this. I would like to avoid paying for any flash development environment software ideally:)
Thank you!
You could use a data URI to display the file. Essentially you use the image data (plus a prefix) as the src attribute of an image element. If you already figured out how to read the file into memory as a base64 encoded string, using a data URI would probably be the easiest way to display the image.
OK
I was able to implement the following solution (just in case anyone has any comments or would like to know the answer)
wrote server side code that takes an image and returns its base 64 encoded version.
used the hidden iframe trick to get the base 64 encoded data into an iframe and stored it into the image by dynamically changing the image source to the data uri
For the "hidden iframe trick" - in case you are interested, there is a good article at (see www.openjs.com/articles/ajax/ajax_file_upload/response_data.php)
The only limitation is that IE does not work with images whose base 64 encoded string exceeds 32K - see http://msdn.microsoft.com/en-us/ie/dd578309.aspx. Note that only IE 8 works - IE 7 does not support data uri I believe.