Image in Signature
Idea shared by John Reid - November 2, 2016 at 11:38 AM
Under Consideration
I have a suggestion to allow an image in the signature via webmail that will properly embed the image so that it is not a linked image. I have been experimenting with base64 encoding trying to get this to work, but of course the key is having a proper mime part section to link to so your source can point to it like this src="cid:af4f285892664d06bc6a4d85a1c518a8" and you can not create that mime part in the raw html view because it gets parsed.
 
So here is my idea - why not create a button while creating the signature that will upload your image and give it a handler that you can place in signature where the image should go. Then the handler will take that image from the location where it is stored on the server and replace it with something like src="/TempResourceHandler.ashx?file=att_187ebd94049946239dc0b416f3a9ca65.png" like it does in the compose window when you embed a picture.
 
Here is my logic. I normally use a E-mail client, so using webmail is something I am normally going to do when I am not at my own computer. Sure, I can create a signature with a dummy spot for an image, and when composing the E-mail click that spot, click the insert image button, and provide the image from my computer. Yes, that will give me a signature with a properly embedded image. However that creates 2 issues. 1) doing that every time is a pain in the arse and 2) if I am using webmail I am likely to not be at my computer and don't have the image available.
 
G-mail is already doing this by letting you paste from the clipboard the image into the signature and it ends up properly encoded in your messages. I don't see why the user can not be given the ability to store the image directly on the mail server with an upload button, and have the signature embed it every time using a placeholder.
 
Thank you.

3 Replies

Reply to Thread
0
John,
 
I've submitted a feature request to consider uploading images directly to the signature eliminating the need to link it via HTML. 
 
This will be considered for a future release, however I cannot offer any guarantee's that this will be implemented since we're currently in the middle of a release cycle.
Von See
Technical Support Supervisor
SmarterTools Inc.
(877) 357-6278
www.smartertools.com
0
Understood.

If there are any possible work arounds that anyone knows of I would love to hear it. I thinking of things like creating an E-mail with an embedded image and trying to link to it with something like:

src="imap://john%40shasta%2Ecom@shastaemail.com:143/fetch%3EUID%3E/Templates%3E96?part=1.2&filename=Shasta-Com-Logo-sig.png"

I'm not really sure how to make it work, but if anybody knows, please share.
0
I found what I though was a work around only to hit another issue. Rather than trying to insert the image and mess with the mime boundaries, I directly encoded the image as Base64 using a Data URI so that my image looks like this:
<img src="data:image/gif;base64,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" id="sigPhoto" height="50px" width="172px">
This works great from Thunderbird, but not from SmarterMail webmail. The apparent difference seems to be the transfer encoding. Thunderbird is sending HTML portion of the multipart message this way:
Content-Type: text/html; charset=utf-8
Content-Transfer-Encoding: 7bit
However, SM 15 is doing this:
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
The issue(s) seem to be that you are quoting the charset (which I don't think is correct) and that the transfer encoding is quoted-printable (which should not by itself be an issue, but you will soon understand why it might be the issue.)
 
If you want to reproduce the issue, send my image above via webmail (use source view to paste it) to a G-mail address (Because G-mail will be sure to mangle the results) and view the source (that's view original in Googleland.) What you will see is a broken image caused by all the = signs getting improperly encoded to the quoted-printable =3D. The unnecessarily encoded =3D will not affect most of the HTML even though it looks wrong in the source, but it will break the Base64 encoding and thus the image does not survive the trip back to binary.
 
Send the exact same thing via Thunderbird to Gmail and you can see via the source that the Base64 encoded image is interpreted and shows up as a proper multipart boundary attachment with at randomly named image that replaces the encoded portion of the  
<img src="data:image/gif;base64,iVBORw0KGgoAAAANSU ... >
with something like:
src="cid:part1.8E33DE02.425E679B@Shasta.com"
Still waiting for this to change from "Under Consideration" to "Let's do this damn it!!" as you are past SM 15 (and also 16) and have 17 available as a beta already.
 
In fact, it does not even make the trip from SM webmail to SM webmail, as sending it to myself does the same thing that is happening in G-mail -- That is, I can not see the image in SM webmail and the results are the same as in G-mail. That said, in Thunderbird the source code is the exact same and the encoding from = to =3D is still there, but somehow Thunderbird still interprets the Base64 correctly and displays the image. It is not an multipart attachment, but it does display.

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