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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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Gmail is filtering my web app's email as spam

We have a business web application that periodically sends emails as reminders, links to client data, etc. Our company uses Google Apps for our email provider (with our own domain name), and the web application sends email through Google with…
Hank
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Why should I convince developers to use port 587 for all SMTP communication?

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…
makerofthings7
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How do I surely get spam for my research project?

I have an unusual problem for a project I'm working on - I need to receive spam. Does anyone know how to get on a spammers email list? For the curious - I'm interested to know if applying reverse dns and SPF on an email server actually blocks spam…
dan gibson
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Spam is being sent using my domain, what can I do?

Since it was released I've been using Google Apps FYD for stackednotion.com. All of the email I send goes through Google's servers and I use Gmail to view my email. I haven't had any issues before, however recently I've been seeing weird bouncebacks…
Luca Spiller
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SPF for subdomain to avoid email spam

SPF is a powerful method to avoid blocking the emails as spam. However, setup of SPF is normally for the main domain, and I was unable to find setting for subdomain, and I am not sure if it is effective at all. I want to setup my email server on…
Googlebot
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Algorithm for separating nonsense text from meaningful text

I provided some of my programs with a feedback function. Unfortunately I forgot to include some sort of spam-protection - so users could send anything they wanted to my server - where every feedback is stored in a huge db. In the beginning I…
Chris
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What is the best way to filter spam with JavaScript?

I have recently been inspired to write spam filters in JavaScript, Greasemonkey-style, for several websites I use that are prone to spam (especially in comments). When considering my options about how to go about this, I realize I have several…
Chris Laplante
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Get spamassassin to drop emails containing a specific REGEX in attached filenames

newbie asking first question :) I'm running a mail server (Ubuntu/Postfix/Dovecot) with SpamAssassin. Most of the known spam is flagged (RBLs, and obvious UCE) except for this particular malspam in attached zip files like "order_info_654321.zip",…
Keijo D Putt
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Serve images in emails from http or https?

Does it make a difference at all whether I serve the images in an email campaign from an encrypted domain? Will this make emails less likely to end up in a client's spam folder?
Charles Ingalls
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Preventing Spam; Using Nodemailer; Using Sendmail

I'm using the Nodemailer Node.js module to interface with sendmail. However, my emails go directly to the spam folder when reached by a Gmail account. Why are my emails being shit-canned? It must be something to do with the headers of the email, but…
Sam
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What is the best practice to send emails from PHP script?

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…
makyol
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Using multiple smtp servers with same domain?

I am using MailGun for sending emails and Zoho for receiving emails, which works fine. But then I wanted to enable sending from Zoho to be able to reply to received emails, so I added Zoho spf and DKIM to the domain along with MailGun, which also…
DeepBlue
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Sendgrid email always being sent to gmail spam

I have a clickfunnel account using sendgrid for smtp. The email being sent are all ending up in GMAILs SPAM inbox. The emails are text that contain a link to a pdf that was requested via an opt-in form from a clickfunnels website This doesnt seem…
Geronp
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Account confirmation email sent as SPAM

I am using PHPMailer to send a confirmation email for newly registered users in my social network. But I found out most of them have ended up in user's spam list. (Hotmail and Yahoo). How to avoid this? This is my script $mail=new…
praveen
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Malicious PHP file found on my webserver, need help cleaning and preventing this from happening again

My hosting provider recently suspended my website because something on it was sending out enormous amounts of spam email. Originally me and the provider thought that this was due to an unsecured form for an email campaign I put up on the server a…
boguslavsky
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