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I have implemented a desktop application.I need to send mail.My application can send mail directly.Now i need to implement this tasks when PC is connected through a proxy server.If any one has done it before please help me..

user1699183
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  • What kind of proxy are you sitting behind? Are you sure it supports smtp? – Esben Skov Pedersen Sep 26 '12 at 06:20
  • Maybe this can help, [HOW TO: Send Mail with Proxy Server That Is Configured Manually by Using Collaboration Data Objects for Windows in Visual C# .NET](http://support.microsoft.com/kb/310233) – Amr Sep 26 '12 at 05:20
  • May be answer you are looking is available at https://stackoverflow.com/questions/19446001/send-smtp-mail-from-gmail-live-aol-or-yahoo-accounts-when-my-pc-is-connected-v/42719817#42719817 – Deepak Bhatia Jun 05 '17 at 12:49

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Mail uses smpt. I assume your goal is connecting through an isp/company provided proxy. Those usually only handles http/https. You will not be able to use such a proxy for sending mails since they use different protocols.

Maybe your isp/company have an upstream smtp you can use?

Esben Skov Pedersen
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  • WHUT? I doubt that a [proxy server](http://en.wikipedia.org/wiki/Proxy_server) can act solely as an _HTTP_ proxy. In my opinion, a proxy server can handle _any_ procotol it was designed for. – Uwe Keim Sep 26 '12 at 05:24
  • PC is connected through a proxy server. Seems to indicate it is a proxy server. I for one have never seen a proxy server able to handle anything other than http(except socks proxy) – Esben Skov Pedersen Sep 26 '12 at 05:27
  • Yeah sure, but I don't think that is what op is sitting behind. – Esben Skov Pedersen Sep 26 '12 at 05:46
  • Hehe, and I don't think that he was _not_ having an SMTP proxy. Your turn ;-) – Uwe Keim Sep 26 '12 at 06:15