Hello,

I'm still encountering some problems with DB Mail on my Windows 7 machine. Below are the error messages

The mail could not be sent to the recipients because of the mail server failure.

(Sending Mail using Account 3 (2013-08-30T10:48:46). Exception Message: Cannot send mails to mail server. (Service not available, closing transmission channel. The server response was: ). )

The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 3 (2013-08-30T11:03:46). Exception Message: Cannot send mails to mail server. (The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.1 Authentication required). )

The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 3 (2013-08-30T11:22:32). Exception Message: Cannot send mails to mail server. (Failure sending mail.). )

The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 3 (2013-08-30T11:29:57). Exception Message: Could not connect to mail server. (No such host is known). )

The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 3 (2013-08-30T11:40:54). Exception Message: Cannot send mails to mail server. (The operation has timed out.). )