Verify certificate message

Hi. I did find this issue in a post from 2022 but it didn’t appear to get resolved? I have now started to experience the issue as well. I get the following: eM Client can’t verify identity of “imap.bellnet.ca” The host name doesn’t match the name specified in the certificate. You might be connecting to a server that is pretending to be “imap.bellnet.ca” which could put your confidential information at risk. Would you like to connect to the server anyway?
Then the certificate info is there and the expiration date is Jun 12 2026.
I live in Ontario, Canada and I have contacted Bell about this and because I receive all emails to the affected email address on both my cell and iPad running iOs.
I have had this email address for YEARS so it’s odd that it is suddenly happening.
Bell feels it is either eM Client OR Windows itself.
I do have eM Client running on another computer with only this particular email address so I even tried updating the eM Client version to 10.1.4588 on that computer but the issue still appears. If I click ‘Connect’ on that Verify certificate window, any emails will come in to eM Client but unless I close out of eM Client and then open it again, I do not receive any further emails. I only know that I am receiving them because they pop up on my iOS devices.
To help further, yes, I have had this email on my iOS devices for years and years as well as having on eM Client and again, never experienced this before.
As well, on one computer I am running Windows 10 with the update to Windows 11 back in 2023 and on the other computer I am running Windows 10 - no Windows 11 update - as it was not eligible when the rollout occurred. If there is anything else I can provide for someone to offer some suggestion, please let me know and thanks in advance for reading this incredibly long post.