The "SendUsing" configuration value is invalid.
The "SendUsing" configuration value is invalid is an error message indicating an issue with IIS SMTP Service configuration. Here is how to resolve this issue.
Inexplicable COM+ error messages
The run-time environment has detected an inconsistency in its internal state.", in IIS 6.0 may be due to desktop heap exhaustion
IIS 6.0 error: The tracking (workstation) service is not running
If after an iisreset the following \"The tracking (workstation) service is not running\" error is displayed, here is how to fix that.
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