HealthyMom62 - I am actually a wine writer and have done a lot of research into sulfites (not sulfates with an A). Sulfites are used by winemakers to keep the PROCESS clean. They want the wine that gets bottled to be safe no matter who drinks it anywhere in the world. So it has nothing at all to do with shipping. Once the wine is in the bottle and corked, it's done. It can then be consumed locally or internationally, it doesn't matter.
Are you sure it's sulfites you have a problem with? Do you have more of a problem with red wines or white wines? Also do you have less of a problem with wines over $10?