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When I am trying to send email using Office365 through SMTP, I got the following exception.

"Unable to read data from the transport connection: net_io_connectionclosed."

Sukanya Bhavanibatla
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  • have you looked at this? https://stackoverflow.com/questions/20228644/smtpexception-unable-to-read-data-from-the-transport-connection-net-io-connect – bman Aug 20 '19 at 14:48
  • We need more information to help you, the error message on its own is not enough. A [MCVE](https://stackoverflow.com/help/mcve) will be greatly appreciated. – Antoine Aug 21 '19 at 09:28
  • @bman It didn't help. I am already using Port 587. Also tried with Port 25. Neither helped – Sukanya Bhavanibatla Aug 26 '19 at 10:07

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