Hi since Wed 27/07/2022 our incoming mail has stopped working, I have tried IMAP, IMAPS, POP, POPS, TLS on and off, outgoing is working fine with no issues so the email and passwords are correct, it was working fine before the 27th as well, we use O365 and have always just logged in with no issues.

Error I'm getting is "E-mail settings saved successfully. But unable to connect with mail server - Authentication Failed using the given username and password." when fetching a sample mail Incorrect username or password.