spam

问题 I was wondering, is it really worth the trouble to implement email-obfuscation techniques in order to prevent emails from being harvested these days? My initial thought is no but i might be wrong. My (possibly inaccurate) arguments: spam filtering and detection is superior these days (when looking at my gmail spambox over 90% of all mail i receive is spam but none ends up in my inbox). Is it safe to assume the same for most other email services? most techniques aren't 100% proof against

问题 I have a blog, and i have decided to use Akismet and reCaptcha for spam filtering, the way i am dealing with spam is a) the user should go through the captcha before posting a comment b) Now even if some spam bypass captcha then i would like Akismet to handle it. For akismet to handle the Spam, i thought of creating two different tables in database for comments, One to store the comments which is not detected by Akismet , The other is to store the Comments that is detected by akismet(Spam).

问题 I am sending email using cakephps email function. The email sends correctly but it is going to the spam folder. Can anyone sugggest? 回答1: There can be many causes: The email's content looks like spam (lots of links within a little amount of text, too much alpha-numeric gibberish, certain common spam words) The server from which you're sending the emails has been black-listed The email is not properly formatted (so in your case, check that you're using CakePHP's email function fully correctly)

问题 I have a wordpress blog and I had the Captcha plugin on it for the longest time because it worked. Lately though I am getting mass amounts of spam. I then tried to do a "Add These Random Numbers Together" that were generated via PHP but still no luck. I'm not quite sure what I need to do to block this spam but it is quite annoying. I was reading about some kind of visual script that spammers use - that reads your webpage or something thats why Captcha has the messy images to block this sort

问题 I have C# form in the site and want to prevent spam bots from filling it. The trick is, that I want to avoid CAPTHA or any other user input to avoid loosing a single registration. Here are some techniques I have in my mind: Hidden input field (question: is this still effective?) Track time, since the first user input (focus on FirstName) till posting a form.. Humans will take more than 3 seconds to complete a form (even with auto-fill), where bots take a second or less to fill in registration

问题 I'm using MSSQL Server 2012. The websites connected to this database is developed by ASP.NET C# 2012. Recently my database been hacked or injected by spam links, and they all start the same <div style="display:none"> ..... with some help I made a function that cleans the updated fields, but the problem is after few days the same thing happened again! I can keep cleaning the database, but I'm trying to find an ultimate solution to prevent this from happening for good.. any ideas? Note: I

问题 There is a growing trend to use port 587 for all client to MTA communications. It's in a standards track RFC: http://www.ietf.org/rfc/rfc2476.txt My question is "Why?". Why have 2 instances of a SMTP server running on the same server, if they both do the same thing? What security feature does it provide, besides giving me 2 things to troubleshoot as an administrator. This just seems like unnecessary complication that isn't needed unless the ISP blocks port 25. Even then, if the ISP is

问题 Can anyone suggest the best ways to counter SPAM on forms - we've got a captcha in place but spam still seems to be getting in. Is it possible to do the following... On a form check if the POST request has come from the form submitted from that site (and not a form using the same action). If the request has come from the site accept otherwise don't & simply ignore the request. Also - is it possible to do something server-side to stop DDOS style attacks - as the spammer to our site seems to be

问题 I am getting lots of spam with so-called "invisible" text - large blocks of gibberish hidden from view with white font color on white background or in comment tags. In cPanel "account level filters" I am trying to build a regex filter on the email body. This one (to catch gibberish in comment tags) results in too many false positives because it catches legitimate HTML text which contains occasional comment tags: \<![ \r\n\t]*--[\S\s]{400,6000}--[ \r\n\t]*\> These two (for white text on white

问题 I'm sending a mail using JavaMail from inside a JSP page as follows: String from= request.getParameter("from"); String to= request.getParameter("to"); String thanks= request.getParameter("thanks"); String subject= request.getParameter("subject"); try{ SmtpClient client = new SmtpClient("smtp.example.com"); client.from(from); client.to(to); PrintStream message = client.startMessage(); message.println("From: " + from); message.println("To: " + to); message.println("Subject: " + subject);