Error sending email. in ASP.NET

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Home » Questions & Answers » Error sending email.

Error sending email.

7/23/2010

Author: predictor
vantyx

I have a page in my website to recovery the password of a user, that page send a email by the PasswordRecovery control of ASP.net but when a click in the submit button appear a error:
The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more a.
My WEb.Config configuration for the email is.
<mailSettings>
<smtp from=XXX@gmail.com>
<network host=smtp.gmail.com password=XXX port=587 userName=XXX@gmail.com defaultCredentials=true/>
</smtp>
</mailSettings>

Regards

Answers .............

Author: zannino francesco

Posted Date: 7/23/2010

Is your application running in your local IIS ?
I would like to know where your application is running.

Anyway try adding the folowing in youe web.config file
under the <sytem.web> node
<system.web>
.
.
<authentication mode=Windows/>
.
.
.
<system.web>
PS : if this does not fix the problem let me know with more
includind the information requested at the beginning of this post.

Author: Ahmed Talu

Posted Date: 7/23/2010

*************************************************

zannino francesco

At local machine where people are logged in using Windows accounts it's possible to use

<authentication mode="Windows">

Though the same in some cases applies to servers websites hosted by ASPSPIDER can not use Windows authentication. If using authentication at this hosting service use

<authentication mode="Forms">

*************************************************

predictor

I can't help you with the code but there are some threads from back in time in this forum that I think may be of interest regarding email.

*************************************************

Author: irish

Posted Date: 7/25/2010

Your mail server user secure Authentication to allow you to send any mail. Try these lines of code to make your code a working one.

client = smtp.mail.com;
SmtpClient smtpClient = new SmtpClient(client);
smtpClient.UseDefaultCredentials = false;
smtpClient.EnableSsl = true;
credentials.UserName = username;
credentials.Password = pwd;
smtpClient.Credentials = credentials;

through this code use login with all needed authentication

Happy coding

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