>>> "Uwe" == Uwe Brauer <oub@mat.ucm.es> writes:

   > Hi
   > I reported that 2 years ago. When receiving email from gnus with
   > enriched format on, when replying gmail strips the quotes of earlier
   > emails and makes it impossible to distinguish between my original text
   > and the reply.


The problem seems only occur with private gmail accounts, enterprise
account don't show that behavior (I tested that extensively with my
accounts).

The culprit seems to be a missing empty line after the text you want to
quote.