[Gocamino] Mailing Stuff Ahead

[Glenn]

I previously have forwarded stuff on ahead to Santiago, and it was waiting 
for me about 6 weeks later.  Does anyone know how long will the post office 
hold mail for pilgrims?  This April I will be on the Camino for a bit 
longer, almost 7 weeks.  When I arrive in Spain I will have things that I 
just don't want to carry, and will mail forward them ahead.  Should I put 
"expected arrival date" on the box, or don't I have to be concerned about 
it?

Glenn