Thanks for the reply. Glad to get some traction on this bug lol
There's really not much extra detail I can give unfortunately but I'll try to be specific. You play as a saboteur, and attempt to sabotage the Republic where the options appear-- in the most recent content, for some options, the 'sabotage' choice doesn't work-- there is a chance it could simply be a mail bug, I suppose. Perhaps the game *does* register that you picked the sabotage option but sends the wrong mail to your character.
1. Choose to sabotage the Republic during Inflection Point
2. Play however you wish up until you reach Uncertain Cooperation (post-Ruins of Nul), continue to sabotage the Republic
3. Play through the story, choosing whichever options you want (you can be as friendly or hostile with the NPCs as you wish), but make sure to select [Sabotage] options where possible
4. After defeating Captain Jilo Del, towards the end of this Manaan Daily Area storyline, engage in conversation with him and choose the [Sabotage] option
5. Continue playing through the story, or wait. Eventually you'll receive an in-game mail (this is where the bug appears) thanking you for your service to the Republic on Manaan since Jilo Del's information proved useful in capturing Imperials... even though you told him to lie so that the Republic wouldn't be able to harm Imperial operations on Manaan.