One aspect of the new crafting system is that you can tell your crafters to repeat a task "indefinitely", which in practice should simply mean "until your delivery mailbox is full". So if you have ten slots in your inbox and send your artisans out in the evening to craft as much as they can overnight, you should then wake up to ten items in your inbox, right?
Unfortunately in practice the game doesn't do the calculations for this while you're offline, and not even instantly when you log in - instead, every crafted item takes several seconds to be processed and to actually appear in your inbox, and this process doesn't even start until you actually log in.
So what now happens to me every time I log on is that I dash to my delivery box and find it maybe half full (as far as the game managed to calculate its contents in the time it took me to get there). I take everything out, and the game continues to fill it up. Again, and again, and again... until I actually run out of materials or the calculation decides that in the x hours since I last logged in, that's the maximum amount of items my artisan would have been able to craft in terms of time.
I guess I should be glad that the offline crafting is so efficient, but on the other hand it's actually kind of annoying that I now basically spend the first fifteen minutes of any given play session just sitting next to my mailbox and gradually emptying it out over and over again. I guess I could just let it hit the space limit but that would then feel wasteful. It's kind of a damned if you do, damned if you don't.