Created attachment 8785934 [details] Template and Error.jpg User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36 Steps to reproduce: 1- Create a template; 2- Insert an image in this template to act as a signature; 3- Use this template a lot. Actual results: After composing an e-mail to our clients, we noticed that it took too much time to actually send it, then, when we looked at the e-mail in the SENT box, we noticed that the image supposed to be there acting as our signature got changed with a random image. This happened in Thunderbird 45.2.0. Expected results: The expected result would be the mail that we sent to have the original image inserted when we created the template. Not a random picture.
Please attach the template as .eml file here so we can investigate.
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