Sending email via .NET is well documented and easy to perform; the
SmtpClient
client class will take care of this need.
Officially this API is marked as obsolete, and has recommended alternatives linked to the referenced article. Please read all the information provided before making any decisions
SmtpClient Class (System.Net.Mail) | Microsoft Docs[
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So now we know what is supposed to be done for certain conditions.
What happens if status is 2?
What changes this status? This is an important part to know as it kind of dictates what triggers the alert to be sent.
If this can change during normal through out the day routines I would recommend that whatever routine goes in and changes it should also fire the
Send Alert method you have yet to write.
On the other hand, if this is changed during a bulk loading event; then I would write a routine to go in and check the values across the table after that import has been completed.
I would recommend that you create a blueprint/flowchart of this project, and have the logic available and shared when you have problems.