Uploaded ASP.NET web application does not send email -

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i developing web application, planned send confirmation emails new members. new email service development aspet. app runs without error or exception, , apparently sends emails try , catch blocks return ano exception. however, no 1 receives mail. here code: 

using system; using system.net; using system.web; using system.net.mail; using system.collections.generic; using system.componentmodel.composition; using system.text.regularexpressions;  public void sendemailaddressverificationemail(string username, string to)     {         mefmanager.compose(this);         string encryptedname = username.encrypt("verify");          string msg = "please click on link below or paste browser verify email account.<br><br>" +                         "<a href=\"" + _configuration.rooturl + "account/verifyemail.aspx?a=" +                         encryptedname + "\">" +                         _configuration.rooturl + "account/verifyemail.aspx?a=" +                         encryptedname + "</a>";          sendemail(to, "", "", "account created! email verification required.", msg);     }   public void sendemail(string to, string cc, string bcc, string subject, string message)     {         mailmessage mm = new mailmessage(from_email_address,to);         if(!string.isnullorempty(cc))             mm.cc.add(cc);          if (!string.isnullorempty(bcc))             mm.bcc.add(bcc);          mm.subject = subject;         mm.body = message;         mm.isbodyhtml = true;          send(mm);     }   private void send(mailmessage message)     {         try         {         //during developement not sending mails #if !debug         smtpclient smtp = new smtpclient();         smtp.send(message);         console.write("e-mail sent!"); #endif          }         catch(exception ex)         {             console.write("could not send e-mail - error: " + ex.message);         }     }

also web.config , web.release.config files follows:

web.config:

<system.net>  <mailsettings>   <smtp>             <network host="localhost" port="25" defaultcredentials="true"/>   </smtp>  </mailsettings> </system.net>

web.release.config:

<smtp from="postmaster@itok.com">   <network       host="mail.itok.com"         defaultcredentials="true"       enablessl="false"                    port="25"       username="postmaster@itok.com"       password="*********"       xdt:transform="replace"     /> </smtp>

can me find reason? have idea or suggestion answer? sources of such problem?

i can't answer question, here few tips long put in comment.

in development environment, enable sending mails using delivery method specifiedpickupdirectory, rather using conditional compilation disable sending mails (if !debug...).

this enable test code in development environment - check email files being created in specified directory (which must exist , writable web application). 

<smtp deliverymethod="specifiedpickupdirectory" from="postmaster@itok.com">   <network host="localhost"/>   <specifiedpickupdirectory pickupdirectorylocation="c:\temp\mails\"/> </smtp>

if works in development environment, can assume code ok, , problem deployed configuration.

your use of console.write log errors in web application looks suspicious: expecting see these errors?


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