Whats the difference between Sender, From and Return-Path? What's the difference between an email Sender, From and Return-Path value? Example: I have a contact form where the user can input their email, would this be assigned to sender, from or return-path?
In a C# event handler, why must the sender parameter be an object? According to Microsoft event naming guidelines, the sender parameter in a C# event handler "is always of type object, even if it is possible to use a more specific type" This leads to lots of event
Explain this: CheckBox checkbox = (CheckBox)sender; 1 The sender parameter (which is declared as plain Object) is cast to CheckBox as you apparently know that the sender of that event always is a CheckBox
smtp e-mail headers: return-path vs. sender vs. from Sender is the person that sent the email, if different than the From ("Sent by Sender on behalf of From ") Sometimes this is set by the user's mail software, and sometimes by their mail server This, if present, should be different from the From address These headers can all be faked pretty easily, so verification is pretty much out
Working with object sender, EventArgs e inside an Event Handler The signature of an event handler in Net is (or at least should be): (object sender, XXArgs e) where XXArgs is a class that inherits from EventArgs sender is, well, the sender of the event In your example, if you click on a button, the button will fire the event using its own instance reference (this) for the sender parameter (so sender is a reference to your button) This is useful because
How to use Sender parameter with As operator for more then one . . . It's very good, but the example at the question covers just the text caption problem, but the big picture is to use the Sender for more than just that There are lots of methods and properties that might be shared by different types of objects that sender does not accept the easy way, and we sometimes need to use it
How to send an email with Python? - Stack Overflow Make sure you have granted permission for both Sender and Receiver to send emails and receive them from Unknown sources (External Sources) in the Email Account