Thank you for your reply.
For my tests I used the Putsmail service with inliner option activate.
Unfortunately I do not have a machine with Outlook 2011 available for a real test. And I do not think the problem is related to the script.
As indicated in the screen shots , there is a kind of opaque layer to the e -mail. Different the test showed that in reality it would be several floating layer.
Examples below image below :
Looking more closely in the screenshot above. It may be noted that the layer is only present in 50% of the width of the e -mail , and appears to be floating left. leaving visible the bottom of the real message.
More rarely, a transparent layer, the same size as the opaque layer is shown . I noticed because there is a slight shift in the "sticking" of the screenshot. I would put a screen layout that I was soon meeting the case !!
In addition , restarting ( at least once using the R key ) testing, screenshot eventually be visible without those unsightly layers !! ProcedÃ© this also works when the problem occurs on other platforms (iPhone 4, 4S , 5, 6 and 6 more) Different
In summary , I do not think the problem comes from the code. However, I give you the scripts used (probably perfectible ... )
A shared => https://litmus.com/pub/518bc21
However I changed a lot of things from this test ...
Another shared test => https://litmus.com/pub/cf57bbf
An "improved" version of my template
I hope I have been clear :/.
Well, after some tests, it appear that the layer color come from body background-color. But i don't understand how to avoid the layer effect :/.
Outlook 2011 is the reserved client users mac.A view statistics, I do not think many people use this client ( their preference toward Apple customers? )
Difficult to see the Stats for this client alone , Outlook usually encompassing a solution ( webmail, mobile , ...)
Is it really worth spending the time to debug an email to the customer ??