The SSL for our Incoming server (pop.mailhostbox.com) on Business & Enterprise Email is up for renewal.
The renewal schedule is as follows:
Post completion of certificate renewal, you might face issues on your Email client, particularly iOS and MAC, stating that the certificate has expired.
In order to resolve this error, you need to reconfigure the Email account for the respective Mail client to ensure that the new SSL is fetched for the pop server.
You can refer to the following Knowledgebase article on how to resolve this issue : https://support.mailhostbox.com/iphone-and-apple-mail-issues/