Logo in HTML e-mail signature disappears when saving or auto saving e-mail
I use an HTML signature with a linked image as a logo.
Whenever I save an e-mail before sending it (in order to store the draft of the message in my mailbox IMAP draft folder), the signature logo disappears and the logo is replaced by a broken link;
The same happens when the message is auto saved (if the message auto save feature is enabled).
How I prevent my logo to disappear?
Thunderbird 45.2.0.
I use an HTML signature with a linked image as a logo.
Whenever I save an e-mail before sending it (in order to store the draft of the message in my mailbox IMAP draft folder), the signature logo disappears and the logo is replaced by a broken link;
The same happens when the message is auto saved (if the message auto save feature is enabled).
How I prevent my logo to disappear?
Thunderbird 45.2.0.