I hate being dumb about how these matters work, but if I am in Europe and have WiFi, will I be able to send and receive emails? Thanks
Yes, sir! When WiFi is available your phone should access the Internet as it does here at home. In case it helps: International Travel with a Republic Phone.
Although covered in the linked document. You’ll also be able to place and receive both phone calls and texts (to the US/Canada) when connected to an unrestricted wifi while abroad.