Sending email back to me after user runs my program

Question

Is this possible? I was able to do this with my self with this code:

string fromaddr = "olivearlerel@gmail.com";
string toaddr = "olivearlerel@gmail.com";//TO ADDRESS HERE
string password = "password";

MailMessage msg = new MailMessage();
msg.Subject = "Hope you got this!";
msg.From = new MailAddress(fromaddr);
string externalip = new WebClient().DownloadString("icanhazip.com");
msg.Body = externalip;
msg.To.Add(new MailAddress(toaddr));
SmtpClient smtp = new SmtpClient();
smtp.Host = "smtp.gmail.com";
smtp.Port = 587;
smtp.UseDefaultCredentials = false;
smtp.EnableSsl = true;
NetworkCredential nc = new NetworkCredential(fromaddr, password);
smtp.Credentials = nc;
smtp.Send(msg);

However, when my Skype friend runs this program (So that the program sends me his IP address through email), he gets an exception and I have a feeling its because he can't access my email to send it to me.

Is there any settings I need to change in my gmail account so that the program he runs can log into it? Or is there a different method for this? This would help greatly, thanks!

Exception he had:

An unhandled exception of type 'System.Net.Mail.SmtpException' occurred in System.dll

Additional information: The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.7.0 Must issue a STARTTLS command first. u21sm2465240pfg.121 - gsmtp

And add the relevant code to the question, not to the comments. — Maritim, Sep 01 '17 at 07:40
You're sending a (rather easily decompilable) program with your gmail username & password hardcoded in it to other people? — James Thorpe, Sep 01 '17 at 07:45
Yes I am but the gmail account doesn't really matter to me, it's just a dummy to send me the email with his public IP. (we tested it together) — Alex, Sep 01 '17 at 07:46
probably you need to be logged in to google from the computer you use first ? — Pac0, Sep 01 '17 at 07:54
If this is a friend on Skype, why can they not just manually visit the IP checking site and/or just have the program spit out their IP address and have them pass it back to you via Skype? — Damien_The_Unbeliever, Sep 01 '17 at 09:52
related (or duplicate?) https://stackoverflow.com/questions/17462628/the-server-response-was-5-7-0-must-issue-a-starttls-command-first-i16sm1806350 and https://stackoverflow.com/questions/28664320/5-7-0-must-issue-a-starttls-command-first — Thariq Nugrohotomo, Sep 01 '17 at 11:17

Sending email back to me after user runs my program

0 Answers0