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von krautteich (DE), 2013-01-13, 18:42   Spam?  

Antwort: 

von Lisa4dict loggedout, 2013-01-14, 05:36   Spam?  99.11.160....

Google

"be back healthy" wouldn't be sth. one would send someone off with.  You'll find the expression in phrases like "he was glad to be back healthy."

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von jb (GB), 2013-01-14, 10:16   Spam?  

While the second part of the salutation is not particularly "worttreu", this is probably as close and natural to British speech as you can get. If you're looking for a closer translation, "Look after yourself and come back in one piece" might do - particularly if the addressee has a high-risk occupation or fondness for extreme sports.

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von Lisa4dict loggedout, 2013-01-15, 01:07   Spam?  99.11.160....

i.e. intended for someone from the US.  "keep well" sounds very British to my ears.  I'd use it for food that stays fresh in the fridge.  Yet another BE/AE difference :-)

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von jb (GB), 2013-01-15, 09:00   Spam?  

It does help if you read the question properly. Lisa is right to point out my error. Incidentally, food will "keep well" in a British fridge, too. :-)