Both will reach their recipients.

I would avoid the "all caps" style except for the last two lines, add a dot after M and use accents where needed.

La Poste - Direction du Courrier
Service Achats - M. Michel Dupont
Cité Descartes
2 boulevard Newton
CHAMPS SUR MARNE
77453 MARNE LA VALLÉE Cedex 2

Both will reach their recipients.

I would avoid the "all caps" style except for the last two lines, add a dot after M and use accents where needed.

La Poste - Direction du Courrier
Service Achats - M. Michel Dupont
Cité Descartes
2 boulevard Newton
CHAMPS SUR MARNE
77453 MARNE LA VALLEE CEDEX 2

Both will reach their recipients.

I would avoid the "all caps" style except for the last two lines, add a dot after M and use accents where needed.

La Poste - Direction du Courrier
Service Achats - M. Michel Dupont
Cité Descartes
2 Boulevard Newton
CHAMPS SUR MARNE
77453 MARNE LA VALLÉE Cedex 2

Both will reach their recipients.

I would avoid the "all caps" style except for the last two lines, add a dot after M and use accents where needed.

La Poste - Direction du Courrier
Service Achats - M. Michel Dupont
Cité Descartes
2 boulevard Newton
CHAMPS SUR MARNE
77453 MARNE LA VALLÉE Cedex 2