I will try looking into it, but is is probably shippingapis.com, a service provided by the post office.  Or more specifically, production.shippingapis.com.

Thank you, That helps.  Do you happen to know all the URLs that Avalara might be calling?

It should generally be looking at the avatax.com domain.

developer.avalara.com/.../

Sorry i do not.  The code for Avalara is not Sage owned and I do not have access to it to find out.

It could be doing its own internal thing, or calling out to a web link like ours but it is entirely possible that they use a different source.

Sorry i do not.  The code for Avalara is not Sage owned and I do not have access to it to find out.

It could be doing its own internal thing, or calling out to a web link like ours but it is entirely possible that they use a different source.