yesterday everything worked fine, I was trying to get Outlook Anywhere to work and I have no idea what could I have done, but now no external users can login(except for owa). Internaly imap pop3 and exchange works fine. Any suggestions? server roles: mailbox, client access, hub transport

also I have this error in event logsEvent ID: 12014Microsoft Exchange couldn't find a certificate that contains the domain name mail.lithill.lt in the personal store on the local computer. Therefore, it is unable to support the STARTTLS SMTP verb for the connector Default MAIL with a FQDN parameter of mail.lithill.lt. If the connector's FQDN is not specified, the computer's FQDN is used. Verify the connector configuration and the installed certificates to make sure that there is a certificate with a domain name for that FQDN. If this certificate exists, run Enable-ExchangeCertificate -Services SMTP to make sure that the Microsoft Exchange Transport service has access to the certificate key.

and in POP3 logs when i try to login i see this:2008-09-04T08:14:09.506Z,,0000000000AE8CDB,1,serverIP:110,ClientIP:55438,>,+OK The Microsoft Exchange POP3 service is ready.,2008-09-04T08:14:09.553Z,,0000000000AE8CDB,2,serverIP:110,ClientIP:55438,<,USER spam,2008-09-04T08:14:09.553Z,,0000000000AE8CDB,3,serverIP:110,ClientIP:55438,>,-ERR Command is not valid in this state.,2008-09-04T08:14:09.600Z,,0000000000AE8CDB,4,serverIP:110,ClientIP:55438,-,,Local

solved by changing -LoginType from PlainTextAuthentication to PlainTextLogin for popsettings and IMAPsettings.dunno why it stopped working though...