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Prevent email triggering from external source in ASP.Net Web Forms
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I'm using mailchimp bulk email subscription to send newsletter email to my customers. But, someone is using some mechanism to trigger emails from my website.
I'm getting bulk emails continuously one after another from my website.
Is there any way available to stop this hacking activity?
Becuase of this, my subscription is closing very soon as I'm using more emails per minute.
Here's my code:
protected void btnSubmit_Click(object sender, EventArgs e)
{
//Fetching Settings from WEB.CONFIG file.
string emailSender = ConfigurationManager.AppSettings["emailsender"].ToString();
string emailSenderPassword = ConfigurationManager.AppSettings["password"].ToString();
string emailSenderHost = ConfigurationManager.AppSettings["smtpserver"].ToString();
int emailSenderPort = Convert.ToInt16(ConfigurationManager.AppSettings["portnumber"]);
Boolean emailIsSSL = Convert.ToBoolean(ConfigurationManager.AppSettings["IsSSL"]);
//Fetching Email Body Text from EmailTemplate File.
string FilePath = "D:\MBK\SendEmailByEmailTemplate\EmailTemplates\SignUp.html";
StreamReader str = new StreamReader(FilePath);
string MailText = str.ReadToEnd();
str.Close();
//Repalce [newusername] = signup user name
MailText = MailText.Replace("[newusername]", txtUserName.Text.Trim());
string subject = "Welcome to CSharpCorner.Com";
//Base class for sending email
MailMessage _mailmsg = new MailMessage();
//Make TRUE because our body text is html
_mailmsg.IsBodyHtml = true;
//Set From Email ID
_mailmsg.From = new MailAddress(emailSender);
//Set To Email ID
_mailmsg.To.Add(txtUserName.Text.ToString());
//Set Subject
_mailmsg.Subject = subject;
//Set Body Text of Email
_mailmsg.Body = MailText;
//Now set your SMTP
SmtpClient _smtp = new SmtpClient();
//Set HOST server SMTP detail
_smtp.Host = emailSenderHost;
//Set PORT number of SMTP
_smtp.Port = emailSenderPort;
//Set SSL --> True / False
_smtp.EnableSsl = emailIsSSL;
//Set Sender UserEmailID, Password
NetworkCredential _network = new NetworkCredential(emailSender, emailSenderPassword);
_smtp.Credentials = _network;
//Send Method will send your MailMessage create above.
_smtp.Send(_mailmsg);
}
}
asp.net email smtp mailchimp bulk-email
asked 6 hours ago
55SK55
469
add a comment |
up vote
0
down vote
favorite
I'm using mailchimp bulk email subscription to send newsletter email to my customers. But, someone is using some mechanism to trigger emails from my website.
I'm getting bulk emails continuously one after another from my website.
Is there any way available to stop this hacking activity?
Becuase of this, my subscription is closing very soon as I'm using more emails per minute.
Here's my code:
protected void btnSubmit_Click(object sender, EventArgs e)
{
//Fetching Settings from WEB.CONFIG file.
string emailSender = ConfigurationManager.AppSettings["emailsender"].ToString();
string emailSenderPassword = ConfigurationManager.AppSettings["password"].ToString();
string emailSenderHost = ConfigurationManager.AppSettings["smtpserver"].ToString();
int emailSenderPort = Convert.ToInt16(ConfigurationManager.AppSettings["portnumber"]);
Boolean emailIsSSL = Convert.ToBoolean(ConfigurationManager.AppSettings["IsSSL"]);
//Fetching Email Body Text from EmailTemplate File.
string FilePath = "D:\MBK\SendEmailByEmailTemplate\EmailTemplates\SignUp.html";
StreamReader str = new StreamReader(FilePath);
string MailText = str.ReadToEnd();
str.Close();
//Repalce [newusername] = signup user name
MailText = MailText.Replace("[newusername]", txtUserName.Text.Trim());
string subject = "Welcome to CSharpCorner.Com";
//Base class for sending email
MailMessage _mailmsg = new MailMessage();
//Make TRUE because our body text is html
_mailmsg.IsBodyHtml = true;
//Set From Email ID
_mailmsg.From = new MailAddress(emailSender);
//Set To Email ID
_mailmsg.To.Add(txtUserName.Text.ToString());
//Set Subject
_mailmsg.Subject = subject;
//Set Body Text of Email
_mailmsg.Body = MailText;
//Now set your SMTP
SmtpClient _smtp = new SmtpClient();
//Set HOST server SMTP detail
_smtp.Host = emailSenderHost;
//Set PORT number of SMTP
_smtp.Port = emailSenderPort;
//Set SSL --> True / False
_smtp.EnableSsl = emailIsSSL;
//Set Sender UserEmailID, Password
NetworkCredential _network = new NetworkCredential(emailSender, emailSenderPassword);
_smtp.Credentials = _network;
//Send Method will send your MailMessage create above.
_smtp.Send(_mailmsg);
}
}
asp.net email smtp mailchimp bulk-email
asked 6 hours ago
55SK55
469
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I'm using mailchimp bulk email subscription to send newsletter email to my customers. But, someone is using some mechanism to trigger emails from my website.
I'm getting bulk emails continuously one after another from my website.
Is there any way available to stop this hacking activity?
Becuase of this, my subscription is closing very soon as I'm using more emails per minute.
Here's my code:
protected void btnSubmit_Click(object sender, EventArgs e)
{
//Fetching Settings from WEB.CONFIG file.
string emailSender = ConfigurationManager.AppSettings["emailsender"].ToString();
string emailSenderPassword = ConfigurationManager.AppSettings["password"].ToString();
string emailSenderHost = ConfigurationManager.AppSettings["smtpserver"].ToString();
int emailSenderPort = Convert.ToInt16(ConfigurationManager.AppSettings["portnumber"]);
Boolean emailIsSSL = Convert.ToBoolean(ConfigurationManager.AppSettings["IsSSL"]);
//Fetching Email Body Text from EmailTemplate File.
string FilePath = "D:\MBK\SendEmailByEmailTemplate\EmailTemplates\SignUp.html";
StreamReader str = new StreamReader(FilePath);
string MailText = str.ReadToEnd();
str.Close();
//Repalce [newusername] = signup user name
MailText = MailText.Replace("[newusername]", txtUserName.Text.Trim());
string subject = "Welcome to CSharpCorner.Com";
//Base class for sending email
MailMessage _mailmsg = new MailMessage();
//Make TRUE because our body text is html
_mailmsg.IsBodyHtml = true;
//Set From Email ID
_mailmsg.From = new MailAddress(emailSender);
//Set To Email ID
_mailmsg.To.Add(txtUserName.Text.ToString());
//Set Subject
_mailmsg.Subject = subject;
//Set Body Text of Email
_mailmsg.Body = MailText;
//Now set your SMTP
SmtpClient _smtp = new SmtpClient();
//Set HOST server SMTP detail
_smtp.Host = emailSenderHost;
//Set PORT number of SMTP
_smtp.Port = emailSenderPort;
//Set SSL --> True / False
_smtp.EnableSsl = emailIsSSL;
//Set Sender UserEmailID, Password
NetworkCredential _network = new NetworkCredential(emailSender, emailSenderPassword);
_smtp.Credentials = _network;
//Send Method will send your MailMessage create above.
_smtp.Send(_mailmsg);
}
}
asp.net email smtp mailchimp bulk-email
asked 6 hours ago
55SK55
469
I'm using mailchimp bulk email subscription to send newsletter email to my customers. But, someone is using some mechanism to trigger emails from my website.
I'm getting bulk emails continuously one after another from my website.
Is there any way available to stop this hacking activity?
Becuase of this, my subscription is closing very soon as I'm using more emails per minute.
Here's my code:
protected void btnSubmit_Click(object sender, EventArgs e)
{
//Fetching Settings from WEB.CONFIG file.
string emailSender = ConfigurationManager.AppSettings["emailsender"].ToString();
string emailSenderPassword = ConfigurationManager.AppSettings["password"].ToString();
string emailSenderHost = ConfigurationManager.AppSettings["smtpserver"].ToString();
int emailSenderPort = Convert.ToInt16(ConfigurationManager.AppSettings["portnumber"]);
Boolean emailIsSSL = Convert.ToBoolean(ConfigurationManager.AppSettings["IsSSL"]);
//Fetching Email Body Text from EmailTemplate File.
string FilePath = "D:\MBK\SendEmailByEmailTemplate\EmailTemplates\SignUp.html";
StreamReader str = new StreamReader(FilePath);
string MailText = str.ReadToEnd();
str.Close();
//Repalce [newusername] = signup user name
MailText = MailText.Replace("[newusername]", txtUserName.Text.Trim());
string subject = "Welcome to CSharpCorner.Com";
//Base class for sending email
MailMessage _mailmsg = new MailMessage();
//Make TRUE because our body text is html
_mailmsg.IsBodyHtml = true;
//Set From Email ID
_mailmsg.From = new MailAddress(emailSender);
//Set To Email ID
_mailmsg.To.Add(txtUserName.Text.ToString());
//Set Subject
_mailmsg.Subject = subject;
//Set Body Text of Email
_mailmsg.Body = MailText;
//Now set your SMTP
SmtpClient _smtp = new SmtpClient();
//Set HOST server SMTP detail
_smtp.Host = emailSenderHost;
//Set PORT number of SMTP
_smtp.Port = emailSenderPort;
//Set SSL --> True / False
_smtp.EnableSsl = emailIsSSL;
//Set Sender UserEmailID, Password
NetworkCredential _network = new NetworkCredential(emailSender, emailSenderPassword);
_smtp.Credentials = _network;
//Send Method will send your MailMessage create above.
_smtp.Send(_mailmsg);
}
}
asp.net email smtp mailchimp bulk-email
asp.net email smtp mailchimp bulk-email
asked 6 hours ago
55SK55
469
asked 6 hours ago
55SK55
469
asked 6 hours ago
55SK55
469
asked 6 hours ago
55SK55
469
asked 6 hours ago
55SK55
469
469
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
up vote
1
down vote
You should have captcha on your form: https://www.google.com/recaptcha/intro/v3.html
Add a reference on your website to library/bin/Release/Recaptcha.dll: On the Visual Studio Website menu, choose Add Reference and then click the .NET tab in the dialog box. Select the Recaptcha.dll component from the list of .NET components and then click OK. If you don't see the component, click the Browse tab and look for the assembly file on your hard drive.
Insert the reCAPTCHA control into the form you wish to protect by adding the following code snippets:
At the top of the aspx page, insert this:
<%@ Register TagPrefix="recaptcha" Namespace="Recaptcha" Assembly="Recaptcha" %>
Then insert the reCAPTCHA control inside of the tag:
<recaptcha:RecaptchaControl
ID="recaptcha"
runat="server"
PublicKey="your_public_key"
PrivateKey="your_private_key"
/>
You will need to substitute your public and private key into PublicKey and PrivateKey respectively.
Make sure you use ASP.NET validation to validate your form (you should check Page.IsValid on submission).
answered 4 hours ago
Sergiu Muresan
1046
New contributor
Sergiu Muresan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Is there any other options available?
– 55SK55
4 hours ago
You need to block the bots from submitting the form and by using captcha you can do this. From my experience Google ReCaptcha is the best option. There are other options as well: codeproject.com/articles/773785/…
– Sergiu Muresan
2 hours ago
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
You should have captcha on your form: https://www.google.com/recaptcha/intro/v3.html
Add a reference on your website to library/bin/Release/Recaptcha.dll: On the Visual Studio Website menu, choose Add Reference and then click the .NET tab in the dialog box. Select the Recaptcha.dll component from the list of .NET components and then click OK. If you don't see the component, click the Browse tab and look for the assembly file on your hard drive.
Insert the reCAPTCHA control into the form you wish to protect by adding the following code snippets:
At the top of the aspx page, insert this:
<%@ Register TagPrefix="recaptcha" Namespace="Recaptcha" Assembly="Recaptcha" %>
Then insert the reCAPTCHA control inside of the tag:
<recaptcha:RecaptchaControl
ID="recaptcha"
runat="server"
PublicKey="your_public_key"
PrivateKey="your_private_key"
/>
You will need to substitute your public and private key into PublicKey and PrivateKey respectively.
Make sure you use ASP.NET validation to validate your form (you should check Page.IsValid on submission).
answered 4 hours ago
Sergiu Muresan
1046
New contributor
Sergiu Muresan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Is there any other options available?
– 55SK55
4 hours ago
You need to block the bots from submitting the form and by using captcha you can do this. From my experience Google ReCaptcha is the best option. There are other options as well: codeproject.com/articles/773785/…
– Sergiu Muresan
2 hours ago
add a comment |
up vote
1
down vote
You should have captcha on your form: https://www.google.com/recaptcha/intro/v3.html
Add a reference on your website to library/bin/Release/Recaptcha.dll: On the Visual Studio Website menu, choose Add Reference and then click the .NET tab in the dialog box. Select the Recaptcha.dll component from the list of .NET components and then click OK. If you don't see the component, click the Browse tab and look for the assembly file on your hard drive.
Insert the reCAPTCHA control into the form you wish to protect by adding the following code snippets:
At the top of the aspx page, insert this:
<%@ Register TagPrefix="recaptcha" Namespace="Recaptcha" Assembly="Recaptcha" %>
Then insert the reCAPTCHA control inside of the tag:
<recaptcha:RecaptchaControl
ID="recaptcha"
runat="server"
PublicKey="your_public_key"
PrivateKey="your_private_key"
/>
You will need to substitute your public and private key into PublicKey and PrivateKey respectively.
Make sure you use ASP.NET validation to validate your form (you should check Page.IsValid on submission).
answered 4 hours ago
Sergiu Muresan
1046
New contributor
Sergiu Muresan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Is there any other options available?
– 55SK55
4 hours ago
You need to block the bots from submitting the form and by using captcha you can do this. From my experience Google ReCaptcha is the best option. There are other options as well: codeproject.com/articles/773785/…
– Sergiu Muresan
2 hours ago
add a comment |
up vote
1
down vote
up vote
1
down vote
You should have captcha on your form: https://www.google.com/recaptcha/intro/v3.html
Add a reference on your website to library/bin/Release/Recaptcha.dll: On the Visual Studio Website menu, choose Add Reference and then click the .NET tab in the dialog box. Select the Recaptcha.dll component from the list of .NET components and then click OK. If you don't see the component, click the Browse tab and look for the assembly file on your hard drive.
Insert the reCAPTCHA control into the form you wish to protect by adding the following code snippets:
At the top of the aspx page, insert this:
<%@ Register TagPrefix="recaptcha" Namespace="Recaptcha" Assembly="Recaptcha" %>
Then insert the reCAPTCHA control inside of the tag:
<recaptcha:RecaptchaControl
ID="recaptcha"
runat="server"
PublicKey="your_public_key"
PrivateKey="your_private_key"
/>
You will need to substitute your public and private key into PublicKey and PrivateKey respectively.
Make sure you use ASP.NET validation to validate your form (you should check Page.IsValid on submission).
answered 4 hours ago
Sergiu Muresan
1046
New contributor
Sergiu Muresan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
You should have captcha on your form: https://www.google.com/recaptcha/intro/v3.html
Add a reference on your website to library/bin/Release/Recaptcha.dll: On the Visual Studio Website menu, choose Add Reference and then click the .NET tab in the dialog box. Select the Recaptcha.dll component from the list of .NET components and then click OK. If you don't see the component, click the Browse tab and look for the assembly file on your hard drive.
Insert the reCAPTCHA control into the form you wish to protect by adding the following code snippets:
At the top of the aspx page, insert this:
<%@ Register TagPrefix="recaptcha" Namespace="Recaptcha" Assembly="Recaptcha" %>
Then insert the reCAPTCHA control inside of the tag:
<recaptcha:RecaptchaControl
ID="recaptcha"
runat="server"
PublicKey="your_public_key"
PrivateKey="your_private_key"
/>
You will need to substitute your public and private key into PublicKey and PrivateKey respectively.
Make sure you use ASP.NET validation to validate your form (you should check Page.IsValid on submission).
answered 4 hours ago
Sergiu Muresan
1046
New contributor
Sergiu Muresan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 4 hours ago
Sergiu Muresan
1046
New contributor
Sergiu Muresan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 4 hours ago
Sergiu Muresan
1046
answered 4 hours ago
Sergiu Muresan
1046
1046
New contributor
Sergiu Muresan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Sergiu Muresan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Sergiu Muresan is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Is there any other options available?
– 55SK55
4 hours ago
You need to block the bots from submitting the form and by using captcha you can do this. From my experience Google ReCaptcha is the best option. There are other options as well: codeproject.com/articles/773785/…
– Sergiu Muresan
2 hours ago
add a comment |
Is there any other options available?
– 55SK55
4 hours ago
You need to block the bots from submitting the form and by using captcha you can do this. From my experience Google ReCaptcha is the best option. There are other options as well: codeproject.com/articles/773785/…
– Sergiu Muresan
2 hours ago
Is there any other options available?
– 55SK55
4 hours ago
Is there any other options available?
– 55SK55
4 hours ago
You need to block the bots from submitting the form and by using captcha you can do this. From my experience Google ReCaptcha is the best option. There are other options as well: codeproject.com/articles/773785/…
– Sergiu Muresan
2 hours ago
You need to block the bots from submitting the form and by using captcha you can do this. From my experience Google ReCaptcha is the best option. There are other options as well: codeproject.com/articles/773785/…
– Sergiu Muresan
2 hours ago
add a comment |
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