USPS shipping module - no shipping options being displayed

We installed the latest USPS shipping module last week, and it was working fine until last night. A customer placed a successful order around 7PM ET, but then we got an email around 8 from a different customer saying that no shipping options were available. We confirmed this - when you select an item, no shipping methods are shown in the shipping preview, or when you go to check out.

We had not made any changes to the site when this started happening, and our hosting service (FutureQuest) says that there were no server upgrades during that time. Uninstalling and reinstalling the shipping module did not help.

What could have changed that would cause this? We've taken the site off line until this can be resolved, but we're not really sure where to look.

Best Regards,
-Peter Lee
oldpatterns.com

USPS was having issues for a few hours last night ...

Is it working now for you?

Yes, thank you! Tried it again this morning, and everything seems to be working.

Is there a way to find out about issues like this with USPS in the future? I tried Googling for things like "USPS shipping problem" or "USPS down" at the time, but I didn't see any reports of problems.

Best Regards,
-Peter

You could go here to find out if the servers are down:
http://www.shippingapimonitor.com/history.html?api=usps

You can also check FedEx and UPS from there ...

Fantastic -- I had no idea that existed. Thank you!