Message format

[philipe]

Hello; I installed appsuite 7.8.3 when I send a message in pure txt to an email external user a code is to the message my signature is duplicate also I test all combinations html + pure text, txt pure and only combinations.
so I received a message correctly when I put htm and txt pure in the setting and enable html on the publisher(Tiny MCE)
Please help me this is urgent?
Thanks