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Jan 16th, 2009
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error sending mail using system.net.mail

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hi I'm trying to use this code that i found to send an email message using c# application.
i have an iis service running on my computer and the smtp server is configured as my providers smtp server.

the problem is that when i try to send mail i get an error message:
"the specified string is not in the form required for an e-mail address"

i swear to god that i insert a valid mail address.

my code is:

c# Syntax (Toggle Plain Text)
  1. MailMessage message = new MailMessage(to, from, subject, mess);               
  2.                 SmtpClient client = new SmtpClient("mail.bezeqint.net");
  3.                 client.UseDefaultCredentials = true;
  4.                 client.Send(message);
  5.  
  6.                 return "Message sent to " + to + " at " + DateTime.Now.ToString() + ".";

help please.
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Junior Poster
emilio is offline Offline
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Jan 16th, 2009
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Re: error sending mail using system.net.mail

your 'from' is a valid email address as well not just a name?
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rapture is offline Offline
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Re: error sending mail using system.net.mail

you're right the from name was not valid.

but now it's sending the message but it does not arrive.

any ideas ?
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emilio is offline Offline
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Jan 16th, 2009
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Re: error sending mail using system.net.mail

Are the from/to addresses local to the mail server, eg, you arent trying to relay?
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Posting Virtuoso
LizR is offline Offline
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Re: error sending mail using system.net.mail

the mails are not local.
i guess i tried many options and i dont know which one one is right.
i tried to configure the iis smtp server to my isp and i entered my password, when i tried to send it showed an error that access was denied.
i tried to reset all settings and defined the relay on 127.0.0.1 (local host). nothing seems to work.
is there any way to send emails with the iis default smtp server ?
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Junior Poster
emilio is offline Offline
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Jan 16th, 2009
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Re: error sending mail using system.net.mail

Look I've experience about that, I never ever use SMTP to send emails because I am sure the destination would be the JUNK! I use CDO (Microsoft CDO for Windows 2000 library) instead.
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Ramy Mahrous is offline Offline
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Jan 16th, 2009
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Re: error sending mail using system.net.mail

ok i looked for Microsoft CDO for Windows 2000 library and i found some code that should do the job:

c# Syntax (Toggle Plain Text)
  1. CDO.Message oMsg = new CDO.Message();
  2.                 CDO.IConfiguration iConfg;
  3.  
  4.                 iConfg = oMsg.Configuration;
  5.  
  6.                 ADODB.Fields oFields;
  7.                 oFields = iConfg.Fields;
  8.  
  9.                 // Set configuration.
  10.                 ADODB.Field oField = oFields["http://schemas.microsoft.com/cdo/configuration/sendusing"]
  11.  
  12. oField = oFields["http://schemas.microsoft.com/cdo/configuration/sendusing"];
  13.                 oField.Value = 1; 
  14.  
  15. oMsg.Subject = "Test";
  16. oMsg.From = from;
  17.                 oMsg.To = to;
  18. oMsg.Send();

is there any other configuration i should do ?
cause i ran the code (doesn't seem to do anything).
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Junior Poster
emilio is offline Offline
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Jan 16th, 2009
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Re: error sending mail using system.net.mail

Click to Expand / Collapse  Quote originally posted by emilio ...
the mails are not local.
i guess i tried many options and i dont know which one one is right.
i tried to configure the iis smtp server to my isp and i entered my password, when i tried to send it showed an error that access was denied.
i tried to reset all settings and defined the relay on 127.0.0.1 (local host). nothing seems to work.
is there any way to send emails with the iis default smtp server ?
Then it sounds quite simply as the servers not prepared to hand it on because neither the sender or receiver are domains it controls and its not an open realy.

Which is normal. Most servers these days are configured that way to reduce spam.
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Posting Virtuoso
LizR is offline Offline
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Jan 18th, 2009
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Re: error sending mail using system.net.mail

read this

http://www.csharphelp.com/archives4/archive637.html
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Light Poster
BlackSun is offline Offline
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Jan 19th, 2009
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Re: error sending mail using system.net.mail

No way man ... you can do this

c# Syntax (Toggle Plain Text)
  1. mail.Priority = MailPriority.High;

or

c# Syntax (Toggle Plain Text)
  1. mail.Priority = MailPriority.Normal;

works like a bombbbbbbb
cVz
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cVz is offline Offline
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This thread is more than three months old

No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.
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