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Questions tagged [spam]

DO NOT USE THIS TAG ON QUESTIONS THAT ARE SPAM, we have a special flag for that! Questions about bypassing somebody else's spam filter are also not welcome. And keep in mind that this is a programming Q&A site, not a general computer support site. Spam is the use/abuse of electronic messaging systems (e.g. e-mail) to send unsolicited bulk messages indiscriminately.

This tag would be appropriate for programming questions about spam classification, etc.

We do not control the email filters of Gmail, Hotmail, etc. If you want to learn how to bypass them, ask the people who maintain those filters instead (but be very much prepared for "are you serious?" replies, or, most likely, no reply at all).

Understand that spammers read this site and so divulging methods for bypassing somebody's spam filters is comparable to sabotage. Please do not post such solutions.

1049 questions
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PHP form blocking domain

I'm pretty new to PHP (I'm more partial to Ruby), but the website at my company has an email form that customers can fill out to order samples. I'm getting spam from it mostly from @yahoo domains. Is there a snippet of code that I can insert in my…
George
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Undelivered Mail Returned to Sender

Just wondering if there is any way to change the mail subject "Undelivered Mail Returned to Sender" to something else, if the error code is 550. If no then is there is any way to detect a correct email.I am not saying about the email validation.That…
user691146
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1 answer

c program open socket port 25

I have been developing an ANTI SPAM system that I call NSA (No Spam Accepted) written in C (going on for 10 years). My system works on net not content filtering & I have always wanted to add a feature which tries to open a socket to the inbound SMTP…
NG_au
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5 answers

How can I combat spam messages in a medium-sized online community?

I run an online community with over 10k members and frequently get spammed by users sending spam messages to other members in the forms of money scams. They are not sent via robots but by real human beings, probably sat in cyber cafes abroad!! I…
Jake
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3 answers

PHP contact form sends me strange emails sometimes

My site has a PHP contact form which emails me the form data. It is works well when I test it. Also I have received lots of emails from site visitors via that form but ocassionally I receive very strange emails from the form like the one…
Irfanullah Jan
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2 answers

I am continuosly receiving spam from a web form

I am continuously receiving spam from contact us page. In all spam there is no proper E-Mail, the E-Mail address comes across like this: Amsterdam I have applied javascript validation on the contact us form so there should be no chance to pass…
Rana.Asif
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1 answer

Getting unwanted mails

Receiving malicious and unwanted e-mails from various sites.receiver mails are like byYiOVF.at.mydomain.com GyaPbMox.at.mydomain.com But as they does not exist the mails are bounced back to my google apps admin mailbox.Searched and scanned my…
ArC
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2 answers

PHP Spam score calculator?

Is there software that can give an email, with full headers, a spam score? What do most people use? I've seen places like mailchimp.com show a spam calculator. What do they use to determine this score?
rockstardev
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3 answers

Send a list of email without going to SPAM and without have a performance impact on server

We are implementing marketing application with C#, In this application we need to send at least 1000 email to users,I have an email sender class.I have two important question: How can I send these emails without going to users's SPAM folder? Is…
Houshang.Karami
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How do some websites prevent you from leaving?

Possible Duplicate: How do you prevent javascript page from navigating away? How do I stop a page from unloading (navigating away) in JS? I have been on several websites, sorry I cant provide the url, that do not let you leave. No matter what you…
user1354917
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4 answers

Wordpress Contact Form Hack

I'm trying to clean up a small hack on my Wordpress site. It's located at http://www.mydermakare.com. I found the initial spam code in the index.php file and deleted it, but I'm still getting a function session-start error at the top of my…
Rob Myrick
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1 answer

What is the correct way to obfuscate an email address when posting it on a website in 2020?

I apologize in advance if this is not the right place to post this. I am looking for the ideal and correct way to publish an email address on the web and keep it safe. I searched these forums and I found a similar question but is it more than 10…
cc kk
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Laravel sending each e-mail multiple times

When a certain event is fired, my Laravel based app has to send exactly one transactional email to each user in a mailing list. Here is the loop code: $users = User::where('notifiable', 1)->get(); foreach($users as $user) { $info = [ …
Enea74
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How to find average of strings while using k means clustering?

I am trying to build a message spam filter using k-means and Levenshtein distance (consider this mandatory). I am having a problem understanding how can I compute the average of 'strings' when I have to figure out the centroid for each cluster?
user9518171
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PHP SPAM Tracker

Actually, I use PhpMailer to send email. I would like to know if I can track the where the mail was gone (mailbox or spam box). Finaly, I would like track all mails was gone inside the spam box. I would like the same tracking as MailJet :…
edwix
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