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samuel
Newbie
Joined: 15 May 2014
Online Status: Offline
Posts: 2
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| Posted: 08 June 2014 at 7:42pm | IP Logged
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Hi all,
I have a problem that when I set "sender" I can send email, however if not set "sender" I cannot send email. Codes like below:
Smtp mailer = new Smtp();
SmtpServer server = new SmtpServer("InternalSMTP2");
mailer.SmtpServers.Add(server);
mailer.Message.From.Email = "aaa@gmail.com";
mailer.Message.To.Add("aaa@hotmail.com", "smh");
mailer.Message.Subject = "Test Mailbee";
mailer.Send("bb@hotmail.com", (string)null);//if set Sender, can send.
mailer.Send();// if not set Sender, it goes wrong.
Can someone give some help?
Thanks
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Igor
AfterLogic Support
Joined: 24 June 2008
Location: United States
Online Status: Offline
Posts: 6167
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| Posted: 09 June 2014 at 3:44am | IP Logged
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If you're sending mail between different domains (from gmail to hotmail, in your case), that usually requires performing SMTP authentication, and seems like you don't do that it's probably the reason behind the error you got, you should check SMTP logs to see if that's the case. By supplying sender in the same domain as the recipient, you've bypassed that restriction, but in general case you should always authenticate on SMTP if you need to send mail to any domain.
--
Regards,
Igor, AfterLogic Support
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renoldscott
Newbie
Joined: 21 March 2014
Location: United States
Online Status: Offline
Posts: 4
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| Posted: 18 June 2014 at 12:38am | IP Logged
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in past i also have same problem but it automatically solved.
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Topic: Without sender, cannot send email
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