Not really, it is a temporary fix, below what I got from CanadaPost:

Good Afternoon Z........,

Yesterday afternoon we made a temporary change to our infrastructure to allow customer websites to function with Sell Online.
The eStores from your incident should be functioning OK right now.
There is an issue coming however; we implemented a temporary change will be rolled back in time.
As I noticed from your incident many of the customer sites use ZenCart – and the developer forum for Zen Cart has a fix that works when we roll back.
Please see this URL:

https://www.zen-cart.com/showthread....ht=canada+post


The OpenCart product is different and I have not seen a solution for it yet.

Can you confirm that the sites you reported are currently working, and provide them with the ZenCart forum (it will be needed when we revert our change.)


Thanks

and then After my reply I received another one:

Canada Post should be sending out a notification prior to when we revert our temporary fix.
We will be providing them a timeline and text so I’m sure you have about a month before this comes along.

Please ensure you have an email added to you Sell Online account as that is what we use for communications and if it’s missing we don’t have any way to track them down.
If you are switching your stores to Open Cart and Presta Shop – take a look at the developer forum on Canada Post web site.
I would recommend using those web services for shipping instead of this much older Sell Online.
Here is the URL for the developer program: https://www.canadapost.ca/cpotools/apps/drc/home

Thanks

I am posting above two messages as I believe a lot of you are frustrated want to get rid of this major issue.

A wise idea would be to enable shipping table in case of similar disaster, it will permit your customers to check out and you won't lose money (maybe some if the weight is not accurate)(I am using a weight based table from Canada to Canada and USA, was hard to me to figure out table for international shipping. Will work on it soon based on my experience.

I have 4 webstores based on Zen Cart: (www.Crystalstrass.com) (www.Crystallightingparts.com) (www.Chandelierspareparts.com) (www.Crystallampparts.com) and one based on OpenCart (www.roklight.com/webstore)