There are so many possible reasons why this might be happening that it's basically impossible to offer any kind of sensible diagnosis without more information. The most likely scenario is a change at the ISP's end, perhaps in some form of blacklist or configuration.

The best thing you can do at this point is to generate a TCP/IP session log in WinPMail - go into Tools|Internet Options and check the "Create Internet Session logs" checkbox at the bottom of the dialog; then try a connection and get the error. The session log will be a file in your mailbox directory in the form TCPXXXX.WPM. Copy the text from the file and paste it into a reply here so I can see it (make sure you obscure any password information using "x"s when you do this). Finally, remember to turn off session logging once you're done - it eats disk space quickly.

Cheers!

-- David --

Does anypne have any idea why I I should suddenly be unable to connect to

two different POP/IMAP servers to collect mail. Connection is being

established with the mail servers but an error is being reported at

username /password login. One server is telling me that the Command is

bad. My wife has the same problem with a completely new installation of PM

on a different machine with the same server. Fortunately we can collect our mail by using

mailboxes we have with a third ISP to which we are obliged to automatically  forward all

our mail but which is worlking well (except the mail is not being deleted

on the server after download).