spam-prevention

问题 I want to stop spammers from using my site. But I find CAPTCHA very annoying. I am not just talking about the "type the text" type, but anything that requires the user to waste his time to prove himself human. What can I do here? 回答1: Requiring Javascript to post data blocks a fair amount of spam bots while not interfering with most users. You can also use an nifty trick: <input type="text" id="not_human" name="name" /> <input type="text" name="actual_name" /> <style> #not_human { display:

问题 I'm creating a forum for a website, and plan on implementing a "Report this content" function. In all honesty, I'm not sure how useful (lit. necessary) the feature will be, since a user account (created by admin) will be required for posting, but the solution interests me. So in short, this is the scenario: For all users, there will be read-only access to all (non-restricted) content on the forum. For unidentified users there will be a reply button and report this content button present. The

问题 I am developing an android messaging application. Is there a good spam filtering algorithm that works well for SMS? Please give some things to kick start. Rahim. 回答1: I don't think there is a set algorithm through which you can definitely know whether or not user considers an SMS to be spam, (an ad in SMS can be important to some users and spam to others) what you can do however is what Google does to identify spam mail. You could allow the user to mark an SMS as spam or not spam and then

问题 I hope this question wont be too specific. But I really need to ask. We all know that we cannot fully prevent our emails to go to spam box right? But I guess we can decrease the #of emails that goes there. Till now, I use PHP's built-in function mail() but I guess there are other methods right? What are they and what is your best practice for this problem? Taken from: What is the best practice to send emails from PHP script? That's over a year old, hence the new question. 回答1: Swiftmailer It

问题 I use this captcha method on all my forms on many sites, the basic premis is that I have a text box that is hidden by css, if the server-side code determines that there is any content in this box, then the form is not completed. Client side: <li id="li-cap"><label>Leave this field blank</label><input type="text" maxlength="30" id="cap" name="cap" /></li> Css: #li-cap{display:none} Server side psuedo code: if(!nullOrEmpty(input#cap)) { return post back to form with error } else { process form

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 7 years ago . I need to send newsletters to our customers (nearly 500,000), We are using Google Apps as our mail providers, so ultimately it is Gmail. I tried several ways of achieving this, but I've run into a couple of problems: Sometimes, it is hanging up (not sending mails after 255). So I decided to split the emails up

问题 Lately I'm starting to receive spam URLs into my forum software via URL shortener. In the past, they are easy to block by domain, but I can't exactly block the domain for URL shortener since I'm seeing some valid usage as well. Any best practice on how to manage these spam URLs (and spammers that are using it)? 回答1: You could also do something like http://www.untiny.me/ when a post is submitted. Basically, send an HTTP request and capture the "HTTP 301" response. You can then examine the URL

问题 I am able to send an email successfully to my gmail account and the mail goes to the INBOX, but when i send it to hotmail it reaches the Junk/Spam folder? I am using System.Net.Mail to send email. 回答1: Gmail and Hotmail will be running different junk mail filters so while your e-mail is acceptable to one it might not be to the other. Make sure that your e-mail is well formed: the headers are valid the content type matches the body the title is set and relevant to the content the body doesn't

问题 Is there a way to check the score in an ASP.Net application? A class or something similar for .Net? How about other Spam Filters out there. --Edited I am looking for a way to check the spam score of the email messages in C#. 回答1: Here is my super simplified "just check the score" code for connecting to a running Spam Assassin email check from C# which I wrote for http://elasticemail.com. Just setup SA to run on a server and set the access permissions. Then you can use this code to call it:

问题 Is there a way to check the score in an ASP.Net application? A class or something similar for .Net? How about other Spam Filters out there. --Edited I am looking for a way to check the spam score of the email messages in C#. 回答1: Here is my super simplified "just check the score" code for connecting to a running Spam Assassin email check from C# which I wrote for http://elasticemail.com. Just setup SA to run on a server and set the access permissions. Then you can use this code to call it: