Important - Emails not getting attached to thread

https://github.com/Mail-0/Zero/pull/619/files#diff-06cb6d8be021e8318e615ef0a76b36081755035a99722e71a9ed4abaa5889df9R137-R140

“I found the reason why the emails are not being attached to the thread when sending from 0, would be, I hope, fixed on my pr”

https://discord.com/channels/1337126641255846028/1349771910661017713/1358966549872119868