Emails from Gitea comments do not contain the username of the commenter
anywhere, only their display name, so it is not possible to verify who
made a comment from the email itself:
From: "Alice" <email@gitea>
X-Gitea-Sender: Alice
X-Gitea-Recipient: Bob
X-GitHub-Sender: Alice
X-GitHub-Recipient: Bob
This comment looks like it's from @alice.
The X-Gitea/X-GitHub headers also use display names, which is not very
reliable for filtering, and inconsistent with GitHub's behavior:
X-GitHub-Sender: lunny
X-GitHub-Recipient: gwymor
This change includes both the display name and username in the From
header, and switches the other headers from display name to username:
From: "Alice (@fakealice)" <email@gitea>
X-Gitea-Sender: fakealice
X-Gitea-Recipient: bob
X-GitHub-Sender: fakealice
X-GitHub-Recipient: bob
This comment looks like it's from @alice.
360b3fd17c