The SMTP server requires a secure connection or the client was not authenticated. The server response was: 5.5.1 Authentication Required. Learn more at

Question

1.00/5 (1 vote)

See more:

Posted 13-Jan-13 18:27pm

M@anish

Add a Solution

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)

saifullahiit · Answer 1 · 2013-01-13T18:56:00

It seems like you're running an SQL server on your computer. If you have no use for it, uninstall it or disable it from starting every time Windows start. You might also want to run "services.msc" (without the quotes) from the "Run" command and check if you have an SMTP service. If that service is "stopped" or "disabled", double click on it to enable "start" it and change its "startup type" to "automatic"

Keep in mind that if you disable or uninstall your SQL server software, you don't need this service.
Also check this out.
http://www.dotnetspider.com/forum/182756-The-server-response-was-5.5.1-Authentication-Required.aspx[^]
OR
http://forums.asp.net/p/1327338/3667481.aspx[^]

Good Luck!