spam-blocking

Best OS App for Outbound SMTP Packet Capture?

Okay, so this probably sounds terribly nefarious, but I need such capabilities for my senior project. Essentially I'm tasked with writing something that will cut down outbound spam on a zombified pc through a system of packet interception and evaluation. We have a number of algorithms we'll use on the captured messages, but it's the actu...

How can I find out what triggered the TRACKER_ID rule in spamassassin?

I recently received an email from my girlfriend that spamassassin marked as spam, mostly because spamassassin detected a tracker ID... except there wasn't one. I'd like to know what triggered it, so that I can report a sensible bug. ...

Avoiding spam filters for legitimate mail

Duplicate of http://stackoverflow.com/questions/371/how-do-you-make-sure-email-you-send-programmatically-is-not-automatically-marke Initially I planned to send emails from my website as html (i.e. content-type: text/html;) but I just thought about something today, won't it better to send emails as plain text, i.e. content-type: text/pla...

Spambots are cluttering my log file [Django]

I have a nice and lovely Django site up and running, but have noticed that my error.log file was getting huge, over 150 MB after a couple of months of being live. Turns out a bunch of spambots are looking for well known URL vulnerabilities (or something) and hitting a bunch of sub-directories like http://mysite.com/ie or http://mysite.co...

Blacklists, Whitelists, Spam Folders and Email

I want to get on the whitelists for my email system, any recommendations whom to should contact about doing this, do I contact the big email providers directly (Yahoo, gmail, Microsoft hotmail/msn, AOL)? Also besides domainkeys, dkim and SPF records what else is a good way to protect yourself from getting on blacklists and going into sp...

How To Test Email Deliverability - % In Junk Folder

Does anyone know a good tool to test whether your emails are going into spam folders? My web app generates emails to users, and I've been getting a lot of reports back from people saying "hey, no one ever responded to my message". I have SPF rules in place and functioning correctly (email header shows an spf pass). I've also run my me...

How to Prevent SPAM without CAPTCHAs or a Centrally managed system (e.g. akismet)

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 found this & it looks promising, but doesn't contain detailed deployment instructions. I want to present my web forms without burdening my user...

E-mails sent from shared hosting, blocked. Is there a way to avoid that?

Hello, in my website i've a PHP script that automatically mails to my customers a confirmation about the order. My website's domain is registered to a company that hosts my website too. I have a lot of problems to send e-mails using mail() function to some e-mails accounts ... a lot of my users contact me saying that they have never rec...

How to get a detailed report of scans performed by spam-assassin?

Hi, I am planning to setup spam-assassin in my mail server for filtering out spam mails. I would like to get a detailed report of spam checks performed on incoming mails. This will help me in creating custom rules , so that legitimate mails wont be labeled as spam. Please tell me how to configure spam-assassin so that i get a detailed...

How much the honey pot practice is efficently against spam?

With honeypot, i mean more or less this practice: #Register form <style> .hideme{ display:none; visibility: hidden; } </style> <form action="register.php"> Your email: <input type="text" name="u-email" /> Choose a password: <input type="text" name="passwd" /> <div class="hideme"> Please, leave...

Email Program / Service that will hold messages until sender fills out a CAPTCHA.

I'm looking for the following service >> When a person emails an individual, the email goes into a temp hold inbox that they do not see. The person who sent the email will receive an auto responder asking them if they are a real person and they have to fill out a CAPTCHA or something along those lines for the message to be released on...

A captcha and forced registration still isn't stopping robot spam

I'm using the phpdug template at http://fantasybookmark.com and there's still spam coming through. What additional steps should I take? Is recaptcha THAT much better than the captcha system in place here? ...