hay Zhang,
I want to use Outlook or Tunderbird for my mail client. But I don't know why there are invalid username and password in my tunderbird, whereas it work if I run in my webmail?
While in Outlook I find failed to connect in my log on to incoming server (POP3 and SMTP) in Outlook. somethings like above:
"Log onto incoming mail server (POP3): Your e-mail server rejected your login. Verify your user name and password for this account in Account Settings. The server responded: -ERR Authentication failed."
"Send test e-mail message: Your e-mail server rejected your login. Verify your user name and password for this account in Account Settings."