Rated 4 out of 5 stars

le Pat & Mat ar Feabh. 3, 2015 · buan-nasc

This the way how I made it work:
1. go to the account settings
2. edit the signature text and put the HTML line break tag
at the end of each line
3. check the "Use HTML" box
4. check the "attach a signature from a file instead" box
The above setting is odd but it works. I bet that you will enjoy it like I do.