On 25 Mar 2008, at 15:39, Phil Schumm wrote:
[...] Actually, that's not the only problem w/Mail.app since the update. If your preferences are set to compose in plain text, try pasting in some text from another application -- the line breaks are lost (for some reason, this does not happen if your preferences are set to compose in RTF). Don't know if this is related to the "Edit in TextMate..." problem.
I’ve had disappearing newlines when composing plain text in Mail since Leopard. Not related to Edit in TextMate.