Is it possible to stop receiving emails?

I have 3 numbers under my VOIP account and I only want to receive the email notifications on 1 of those. The rest are already redirected to be sent to the respective emails assigned to them.

HOWEVER, I still receive them as emails and they are sent to the assigned email so it looks like this:
sms@voip.m to assignedemail1@gmail.com

This is definitely not my email but I still receive it. Is there any other way to stop this aside from blocking the sender? Thank you!

Hello Darcy,

I would strongly encourage you to reach out to our support team at support@voip.ms regarding this matter, as we can verify the details and provide you with an appropriate solution.