I keep getting a certification alert on my android mobile app for my email addresses. This prevents me from getting any emails on my Samsung phone.

Do you have a missing or expired root certificate in Androids certificate store. These are used to verify the chain of trust & validity of the certificate your email provider is issuing.

Who is your email provider? Who issued their certificate? What version of Android are you using?

Email provider is Spectrum/Charter and the version is G970U1UEU91XE1. The problem seemed to self correct in the fact that when it came to the certification alert it let me complete the issue rather than getting to my setup info and going no further, if that makes any sense. Not sure what happened but the issue has gone away. Thanks for your reply though.