I got a call this morning that Master Gardener’s system is not sending emails. So now I’m in troubleshooting mode. I first logged onto the server and checked the Simple Mail Transfer Protocol (SMTP) service. It’s running. I then went into the application and sent out a test message. Did not receive it. I then went into SqlServer Management Studio (SSMS) and logged into prod. Clicked on Management. Then right clicked Database Mail and selected Send Test E-Mail. I sent a test email out from there. I did not receive the email. I then right-clicked and selected View Database Mail Log. There are many errors being displayed. The error message follows:
Message
The mail could not be sent to the recipients because of the mail server failure. (Sending Mail using Account 20 (2010-04-28T09:37:27). Exception Message: Cannot send mails to mail server. (Mailbox unavailable. The server response was: 5.7.1 Unable to relay for [email recipient]).)