Thanks HSD. I checked my WiFi and all good there. Websites were loading and I could also send myself emails.Just sent myself an email to an @icloud address and it near immediately hit my inbox.
Are you sure your internet is not down? Wifi can show bars to illustrate the connection to the router but if the router isn't connected to the internet, you'll get no email.
Thankfully didn't have time to sort this out as it sorted itself out this morning 🤣 No idea what went wrong though.Try logging into iCloud.com Mail (webmail) with a browser to see if "1001 emails" are piled up on the server but just not transferring to Mail (app). And/or try any other sources of mail you use (gmail webmail or similar).