• Open Apple Mail and go to Mail > Preferences.
• Select the Accounts tab and choose the email account you want to update.
• Click the Server Settings tab.
• Under Username, ensure it reads "myusername@meganet.net" for both Incoming and Outgoing mail servers (append "@meganet.net" if it’s missing).
• For both Incoming and Outgoing mail, ensure the server settings are:
  • Incoming (IMAP or POP3): mail.meganet.net
  • Outgoing (SMTP): smtp.meganet.net
• Click OK to save your changes.