SMTP: failure sending emails

Jasmine Nagrecha

Hi,

I have application hosted locally. While creating users, i cannot receive emails due to following error:

ERROR: System.Web.Services.Protocols.SoapException :: System.Web.Services.Protocols.SoapException: The SMTP server requires a secure connection or the client was not authenticated. The server response was: SMTP authentication is required.

i have added all necessary smtp, ssl settings. My localhost has to work as smtp server. Please let me know if any particular settings are needed. It's more of machine configuration, I guess. Because application works fine on another machine.

Regards,

Jasmine N

5 Replies

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Bhabani Prasad12y ago
You just include the exception details as it will be easier to find the detailed error
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Rajagopalan R V12y ago
Sorry Can't Get Meaning For Your Above Post Please Can You Explain it Clearly
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Jasmine Nagrecha12y ago
i need to keep ssl=false, and defaultcredentials is =false. ideally, these settings should help. but i guess its something related to machine configuration
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Rajagopalan R V12y ago
Hi.,

Had You Allow Permissions in IIS

If Not Check With Below Method

Go to IIS
IIS---->
Default SMTP Virtual Server (Right Click) ----> Properties ----> Access ----> Relay ----> All Except the List Below (Radio Button) Select that And Click Ok And then Execute Your Code

If U Got Solution With this Mark it Has Accepted

Or Else Please Post The Error

With Regards..,

R.V.Rajagopalan
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Yadlapalli Srikanth12y ago
Please share the sample code and also do the following settings

smtpClient.UseDefaultCredentials = false;
smtpClient.EnableSsl = true;
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