c# - what is the difference between these two methods? -


system.net.mail.smtpclient has 2 methods confused.

1 . sendasync(mailmessage, object)

sends specified e-mail message smtp server delivery. method not block calling thread , allows caller pass object method invoked when operation completes. -msdn

2 . sendmailasync(mailmessage)

sends specified message smtp server delivery asynchronous operation. -msdn

notice names of 2 methods different not overload. difference here?

i looking clear answer description given msdn both methods ambiguous (at least me is.)

the difference 1 sendmailasync uses new async/await technology , other uses old callback technology. , more importantly, object that's passed passed event handler userstate when method completes.


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