winforms - Email id address issue in c# code -

i wrote simple program in c# winforms sending email , code mentioned below:-

    public partial class form1 : form     {          public form1()         {             initializecomponent();          }         public mailmessage rtnmail()         {             string = txt_to.text;             string = txt_from.text;             string subject = txt_subject.text;             string body = txt_body.text;             mailmessage message = new mailmessage(from, to, subject, body);             return message;         }           //button click event          private void btn_send_click(object sender, eventargs e)         {             smtpclient smtp = new smtpclient("smtp.gmail.com");             smtp.port = 587;             smtp.credentials = new system.net.networkcredential("myanotherid@gmail.com", "password");             smtp.enablessl = true;             smtp.timeout = 500000;             smtp.send(this.rtnmail());         }       } 

when run code , put values in textboxes (to, from, body, subject) , click "send" button end getting email @ address

mentioned in textbox named txt_to ( recipient gmail account id).but whenever @ address(email id) got email in microsoft

outlook (which have configued gmail recipeint account), says got email email address mentioned first argument in line of

code below,

smtp.credentials = new system.net.networkcredential("myanotherid@gmail.com", "password"); 

my question is, doing wrong because expect email address im receiving email( in outlook gmail) should 1 put in

textbox named txt_from rather "myanotherid@gmail.com" address.

is there work around or there exist alternate it.

i guess it's gmail's protection prevent sender spoofing.

you can't login gmail yogibear@gmail.com , send e-mail barack.obama@whitehouse.gov. gmail's smtp rewrite message's header indicate has sent e-mail.