Mail is not sendind in my application

Question

0.00/5 (No votes)

See more:

.NET3.5

Hi
Im working in windows application..my application has mail sending facility..i have installed this application fir one our clients..when i send mail im ny system mail is sent succesfully..but when the client send the mail it is showing the error

Error:
The server response was: 5.7.0 must issue a starttls command first.

Is there any solution for it help me

[edit]SHOUTING removed - OriginalGriff[/edit]

Posted 2-Mar-12 20:33pm

premkumar.r

Updated 2-Mar-12 21:00pm

OriginalGriff

v3

Add a Solution

Comments

Varun Sareen 3-Mar-12 2:53am

edit for: removed pre tag

Varun Sareen 3-Mar-12 2:59am

STARTTLS is a sendmail command to initiate a secure connection. So it looks like you need to do one of those.

OriginalGriff 3-Mar-12 3:01am

DON'T SHOUT. Using all capitals is considered shouting on the internet, and rude (using all lower case is considered childish). Use proper capitalisation if you want to be taken seriously.

ajit_machhe 5-Mar-12 0:17am

if you are using Gmail try port 465.

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

aftab5124 · Answer 1 · 2012-03-04T16:51:00

i used below code in web application.

C#

protected bool Send(string To, string From, string Subj, string Msg)
    {
        try
        {
            string mFrom = From.ToString().Trim();
            string mTo = To.ToString().Trim();
            string mSubject = Subj.ToString().Trim();
            string mMsg = Msg.ToString().Trim();
 
            string mMailServer = ConfigurationManager.AppSettings.Get("SMTP");
            int mPort = Convert.ToInt32(ConfigurationManager.AppSettings.Get("PORT"));
 
            MailMessage message = new MailMessage(mFrom, mTo, mSubject, mMsg);
            SmtpClient mySmtpClient = new SmtpClient(mMailServer, mPort);
            // mySmtpClient.Credentials = new System.Net.NetworkCredential(ConfigurationManager.AppSettings["FROMEMAIL"], ConfigurationManager.AppSettings["FROMPWD"]);
            //mySmtpClient.EnableSsl = true;
            message.Priority = MailPriority.High;
            mySmtpClient.UseDefaultCredentials = true;
            mySmtpClient.Send(message);
            return true;
        }
        catch (Exception ex)
        {
            return false;
        }
    }