Hi there, @Ed328. Welcome to the Samsung Community forum, and congratulations on getting your hands on the amazing S24! 
The Samsung Email app provides you with the means to have all of your third-party emails accessible in one place, however, your emails are stored on the servers of your email provider, not your phone. As such, your emails will not have been transferred over to your new phone.
Samsung also do not store any of your email passwords, so if you are not able to log into your email account then you may need to reset the password. The steps for resetting your password vary between email providers, so we would recommend doing an online search for step-by-step instructions on how to do this.
For example, you could search for "Reset Sky email password", or similar. If this is in relation to a different email account, simply switch "Sky" for the name of your email provider.
Once you are able to log into your email account, all of your emails will be correct and present. 🙂
No problem at all. We have a handy online guide for how to set up the email app on your phone that you may also find useful.
