Search results matching tag 'SPAM'

Mails using SMTP

iGulfam — Wed, 10 Jun 2009 04:00:00 GMT

Whenever I send mail using SMTP from my website it always goes to SPAM/Junk/Bulk folder of recipient. Is there a way I can make my mails secure so that users may get mails in Inbox and not in SPAM/Junk/Bulk?

Preventing Spam in Star Rating Systems

Mr. Bluesummers — Sat, 06 Jun 2009 04:00:00 GMT

Hey everyone,

I'm an intermediate user of ASP.net working on a new 'link directory' type site. I'd like to allow users to rate them using a typical jQuery star rating system without having to log in. However, I'd also like to prevent users from spamming the heck out of the system.

I feel that if I had some identification for each user, I could regulate their interaction with the system. I'd use the Cache object, but that could easily be cleared to circumvent the system- right? Has anyone else tried to do this before? Will I have to implement logins and registration?

All my email goes directly to spam

RajibRoy — Mon, 10 Nov 2008 05:00:00 GMT

Hi , I am using the following code to send email but all my email goes directly to spam Please help me.

Dim mailMessage As System.Net.Mail.MailMessage = New System.Net.Mail.MailMessage()
mailMessage.From = New System.Net.Mail.MailAddress(FromEmail)
mailMessage.To.Add(New System.Net.Mail.MailAddress(txtEmail.Text.Trim()))
mailMessage.Priority = Net.Mail.MailPriority.Normal

mailMessage.IsBodyHtml = True

mailMessage.Subject = txtSubject.Text.Trim()
mailMessage.Body = FCKeditor1.Value & FooterMessage

Dim smtpClient As System.Net.Mail.SmtpClient = New System.Net.Mail.SmtpClient(127.0.0.1)
Dim mailAuthentication As System.Net.NetworkCredential = New System.Net.NetworkCredential("mail@webplannernewsletter.com", "subscribe", "webplannernewsletter.com")
smtpClient.Credentials = mailAuthentication

Try
smtpClient.Send(mailMessage)
lblTestMessage.Text = "Test email send"
lblTestMessage.ForeColor = Drawing.Color.Green
Catch smtpExc As System.Net.Mail.SmtpException
'Log error information on which email failed.
lblTestMessage.Text = "Some error on SMTP!"
lblTestMessage.ForeColor = Drawing.Color.Red
Catch ex As Exception
'Log general errors
lblTestMessage.Text = "Some error!"
lblTestMessage.ForeColor = Drawing.Color.Red
End Try

Email privacy on contact form

nickjohnston — Thu, 14 Aug 2008 04:00:00 GMT

Hello All,

I've recently recieving a noticable quantity of spam email, from the same source, with the same content. They're all addressed to various existing addresses, on more than one website, that I'd used on my website in several ASP.NET contact forms - it struck me as a bit odd that the same spam was sent to all of them, as the email addresses cannot be found within the client side code.

FYI, this contact form used a wizard control with two pages, and never displays the email address that the form sends to.

I can only imagine that the server itself had been compromised, but have seen no sign of this - it is up-to-date, appropriately firewalled and running anti-malware software, as is my local machine.

I don't see how else these email addresses could have been accessed, particularly all by the same spam sender. Is there anything I'm missing?

Re: eMail2Image Asp.Net 2.0 Control

jan223 — Sun, 02 Mar 2008 05:00:00 GMT

Hello,

this link is broken.

I have developed a website where you can convert a email-address to an image:

The url is: email2image.com

Jan

Vb.net with SharePoint Server 2007.

aditya_raj — Wed, 09 Jan 2008 05:00:00 GMT

Hello

can anybody please tell me what is sharepoint and what can we do with .net in configaring sharepoint.

Is sharepoint something like SQL server.I am a .net programmer.I don't know sharepoint.But now i got a project which involved sharepoint.Please help me.

Very urgent.What is the editor i need to use while developing something for sharepoint with .net.Can i use VS2005.If so,is the application a project or website.

Preventing spam bots from filling out web forms

DigitalMan — Mon, 20 Aug 2007 04:00:00 GMT

Some of our clients are starting to be effected by this new form of spam. I've done some research and seems like there's no full proof way to really tell between a human and a bot filling out a form. I know there's CAPTCHA but I think it's the wrong direction as it causes more work to the user and can be hard to read by the visually impaired. I also read that spammers are creating databases of the question/answer type tactics. If spammers are posting to the form externally it got me thinking that possibly checking the referring url could work. Any thoughts on this? A co-worker also thought of the idea of using image buttons which pass the x/y click coordinates to the page. Now I guess spammers could then just pass random coords as well to get around it. Then I got to thinking of using an image button with a dynamically generated image where the actual button would be rendered in a random area of a larger transparent image. That way the user would click on the button image and the code could check the coords. Another idea I've seen is randomly renaming the form field name. Seems this could just escalate to no end. Just wondering what other people have thought about this issue.

System.Web.HttpRequestValidationException SPAM Attack

keanxsoul — Mon, 11 Jun 2007 04:00:00 GMT

I have been receiving SPAM attacks lately on one of my Pages on my site.

It seems to be robot. I have tried activating a ASP.NET Regular expression validator to prevent any HTML content from being postback but no result. I am still receiving the errors.

Now the strange part, I have changed the name of the text area affected by the robot from ctl00$ContentPlaceHolder1$txtComments to ctl00$ContentPlaceHolder1$txtCommentBox, but i am still getting the error messages with the old text area name.

I have also set ValidationRequest="false" on the page in question.

Did anyone get accross this issue before ?

Thanks for your time and answers

Here is the stack trace.

Timestamp: 6/11/2007 8:11:17 AM
Message: HandlingInstanceID: 72de6648-f9ee-48ff-a910-2ab90d86ab7d
An exception of type 'System.Web.HttpRequestValidationException' occurred and was caught.
-----------------------------------------------------------------------------------------
06/11/2007 01:11:17
Type : System.Web.HttpRequestValidationException, System.Web, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a Message : A potentially dangerous Request.Form value was detected from the client (ctl00$ContentPlaceHolder1$txtComments="<A href=http://kiuxm...").
Source : System.Web
Help link :
ErrorCode : -2147467259
Data : System.Collections.ListDictionaryInternal
TargetSite : Void ValidateString(System.String, System.String, System.String)
Stack Trace : at System.Web.HttpRequest.ValidateString(String s, String valueName, String collectionName)
 at System.Web.HttpRequest.ValidateNameValueCollection(NameValueCollection nvc, String collectionName)
 at System.Web.HttpRequest.get_Form()
 at System.Web.HttpRequest.get_HasForm()
 at System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull)
 at System.Web.UI.Page.DeterminePostBackMode()
 at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
 at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
 at System.Web.UI.Page.ProcessRequest()
 at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)
 at System.Web.UI.Page.ProcessRequest(HttpContext context)
 at ASP.newreviewoverview_aspx.ProcessRequest(HttpContext context) in c:\WINDOWS\microsoft.net\Framework\v2.0.50727\Temporary ASP.NET Files\root\e5105d11\712565f8\App_Web_iw0bbmky.7.cs:line 0
 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
 at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

Mail not going to Inbox

pirus — Wed, 28 Mar 2007 04:00:00 GMT

Hi all,
howz life there
well I have developed a mail program ( ASP.NET / C# ) for my site which sends user passwords to their email
addresses. However the problem is that my mails are not received in Inbox whereas they are
diverted to the Spam folder. I am not able to resolve it niether I think there is any issue with code as its quite straight forward.
Here is the code have a look if you could suggest any changes or hints that woul be quite helpful

/************ The CODE ********************************/

using dataclass; // mydatabase class
using System.Net.Mail;
using System.SMTP;
using System.Text;

string to;
string sub;
string msg;
Stringbuilder strbld=new Stringbuilder();

to=sqlreader['email']; // email address is retrived from database
sub="Your Login Information";
strbld.Append("Hello" + sqlreader['username'] + " "); // username from database
strbld.Append("Your login name is :" + sqlreader['userlogin'] + " "); // login id from database
strbld.Append("Your login password is :" + sqlreader['userpassword'] + " "); // password from database
strbld.Append("Thank You ");
strbld.Append(" ");
strbld.Append("Support Team ");
strbld.Append("Mysite.com ");

msg=strbld.ToString();

MailMessage mlmsg = new MailMessage();
mlmsg.body=msg;
mlmsg.To.Add(new MailAddress(to));
mlmsg.From=new MailAddress("support@mysite.com","Support Team");
mlmsg.Subject=sub;
mlmsg.IsBodyHtml=true;

SmtpClient mailit = new SmtpClient("Myserver");
mailit.Port=25;
mailit.timeout=200;

mailit.Send(mlmsg);

/**************end of code **********************************/

Thanks in advance.

pIrus
I4INDIAN
Dreams in our eye, Goals are high
Sky is not the limit, when we spread wings and fly

www.Marketraise.com

Re: how to stop comment spam

jeff@zina.com — Mon, 27 Nov 2006 05:00:00 GMT

More information on CAPTCHA:

http://www.codeproject.com/aspnet/CaptchaControl.asp
http://www.aspnetworld.com/articles/2004030101.aspx
http://15seconds.com/issue/040202.htm

Jeff