I sort of presume this to be covered by T5791, but also, do you have "self actions" on and are not getting a n email back? You should with that email preference on.

I can't tell if it's covered by that T5791, I haven't read it closely yet.

But no, self actions don't solve this problem because the email phabricator sends back has a different subject line than the one I sent, so it doesn't thread in gmail. I'd love to be able to email maniphest and star my own sent message, so that when the bug has been filed several minutes later, I can quickly and easily find it. I'm often filing a dozen bugs at once, and I will have forgotten which one I wanted to return to by the time I've finished. With self-actions enabled, I'd have to wade through that dozen emails to find it again.

And specifically, if I turned self-actions on, I would get hundreds of emails a week that I don't have to take action on, they're just noise, and it would drown out the activities of others that I do have to respond to. This particular case, of filing a bug by email, is unique because I can't easily get from the email I sent to the bug itself in order to add some detail after it's been filed. Often if I realize I need to add something to the bug right away, I'll open maniphest, construct a search that will find the bug when it's gone through email, and refresh once a minute until it appears or I forget. It's clunky.

I don't know then if this if even possible if threading back to the original email is the requirement, but T5791 should still likely be the starting point. Maybe @epreistley has better ideas here.