A year or so ago I decided to stop using the mailto tag because many times it is annoying to the user. It will bring up an email program that the user may not be using at the time, which may also t...

I have read through the documentation but the difference is still not very clear to me. My understanding is: 1) include: will allow the IPs listed for the specified domain, and also any additional...

How do you prevent emails being gathered from web pages by email spiders? Does mailto: linking them increase the likelihood of them being picked up? Is URL-encoding useful? Obviously the best coun...

I have a telegram bot that for any received message runs a program in the server and sends its result back. But there is a problem! If a user sends too many messages to my bot(spamming), it will ma...

I sending emails using PHPMailer and SpamAssassin is tagging it * 3.3 MIXED_ES Too many es are not es What does it mean? What is "es"? How to fix?

How do we get rid of these spambots on our site? Every site falls victim to spambots at some point. How you handle it can effect your customers, and most solutions can discourage some people fro...

As you may know, Chrome does not support:autocomplete="off", autocomplete="nope", autocomplete="false" or even autocomplete="new-password" any longer. That means, from time to time, I do get repor...

I am trying to verify if an email actually exists by first resolving its dns, then check if the email is valid using the below code: email = [email protected] domain = email.split("@")[-1] ...

I'm looking for articles on ways to filter spam. When I search around all I keep finding is Wordpress, ways to filter swear words etc which is not what I'm looking for. I'm looking for ways to writ...

I'm trying to create an email template with the logo at the top however the logo is entirely text based, with a custom layout and font. Something like this: http://3cd.co/image/3M2V2X2q1T0n It's g...

I'm developing a spam detection system and have been alerted to find that it can't detect strings like this - "asdfsdf". My solution to this involves detecting if the previous keys were near the o...

I want to protect my e-mail address on webpages. But I don't know JavaScript and PHP. I know only HTML and CSS. So, please help me how to protect my email address with CSS only.

I want to add a simple Contact form to my web site so that customers can contact me easily. <form> NAME <input type='text' name='name' /> EMAIL <input type='text' name='email' /...

I have a website served via AWS CloudFront. I've been getting a ton of entries in my nginx logs that look something like this: nginx_1 | 103.241.51.144 - - [09/Aug/2020:16:03:08 +0000] "GET /m...

My current honey pot on my registration form is an entry for phone number which is placed off screen using position: fixed;. It tricked a standard breed form filler, but doesn't work as well as I...

How can I detect (with regular expressions or heuristics) a web site link in a string of text such as a comment? The purpose is to prevent spam. HTML is stripped so I need to detect invitations to...

Google has rolled out reCAPTCHA v3. It does away with all the user friction. I wish to use it to secure my site. However, I am unsure about how this is going to protect my site. What if a hacker sp...

By "honeypot", I mean more or less this practice: #Register form <style> .hideme{ display:none; visibility: hidden; } </style> <form action="register.php"> Your email: <i...

I am developing a web application with Spring Boot and a React.js SPA, but my question is not specific to those libraries/frameworks, as i assume reporting client-side JS errors to the server (for ...

Has anyone been able to successfully prevent spam on their site without placing a burden on your visitor (e.g. CAPTCHA) and without using a centralized spam reporting system (e.g. Akismet) I've fo...

I've got a problem with SORBS which still blacklists my IPs via which I send notifications to users (IPs are dedicated Amazon SES IPs). I report every ban in their support platform (support.sorbs.n...

I have a paypal form on my website which includes my email: <input type="hidden" name="cmd" value="_cart"> <input type="hidden" name="upload" value="1"> <input type="hidden" name="b...

I am trying to implement some anti-spamming mechanism into my server. I need to know whether req.ip can be faked by the remote hacker in Express.js. Could someone please confirm this with me?

Some other website use cURL and fake http referer to copy my website content. Do we have any way to detect cURL or not real web browser ?

I have a contact form on a website that has been receiving a lot of spam. It is hosting on Github so my methods of server side validation / captcha is quite limited. All fields always had the 'requ...