error in qmail logs

[Jason Radford]

hi all,

I'm getting a reoccuring error in my qmail logs,
I'm not sure I understand what it's trying to
tell me.

@400000003a8a0e53036600b4 warning: trouble opening remote/4/2226680; will try again 
later
@400000003a8a0e530367aa7c warning: trouble opening remote/10/2226663; will try again 
later

Thanks

-Jason