If I use Thunderbird as the mail client from the Windows computer, I can receive no problem, but when I send it continually asks for the password, once I give up entering it I see this error in mail log. I am getting this error message in my cobalt logs for one of my clients that hosts their e-mail on my raq 4. No one else is getting this problem and all mail is going out for everyone else on the site. When i try to telnet to exchange server on port 25 it takes a long time.
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