We are using SQL Server 2005, and Database Mail was working fine.

We replaced our Exchange 5.5 machine with a Exchange 2007 machine. Now I am
getting the following message when I try to send an email through Database
Mail:

Message
The mail could not be sent to the recipients because of the mail server
failure. (Sending Mail using Account 4 (2007-04-25T14:57:52). Exception
Message: Cannot send mails to mail server. (The remote certificate is
invalid according to the validation procedure.).
)

Is there some certificate on SQL Server that refers to my old exchange
server, and that may not be in sync with my new exchange server? If so, how
can I get them in sync?

I have tried different combinations of "This server requires SSL" and of
SMTP Authenticationin the Database Mail account, but I keep getting the same
message.

Thanks,
George

It's working now, but I'm not sure what I did to get it to work.

Thanks,
George

"George Wynne" <george (AT) nssco (DOT) com> wrote