Why are there so many .codisto.com domains in my non-engaged segment?

Dear Klaviyo Fam.

I've started to segment our non-engaged subscribers. Then, I discovered a significant number of recipients from the same domain (bounce-c4069-pebghc@mail.codisto.com) who received our emails but showed no engagement. I have a few questions related to this:

1. Can anyone confirm the origin of this domain? My assumption is that it might be a disposable email from Amazon, but I would appreciate any insights or information you might have.

2. Considering the lack of engagement, would it be advisable to exclude these individuals from our future campaigns? I'm seeking recommendations on whether it's best to focus our efforts on more receptive audiences.

3. Lastly, I'm curious to know if these non-engaged recipients will have any impact on our overall sending reputation. Even they received our emails?
    

   

   
   
    

Thank you all for your assistance and input.

Best regards, Mae