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Questions tagged [spam]

Unsolicited e-mail, comments or posts, often sent out in large volumes; possibly but not necessarily commercial in nature

Spam can refer to:

  • Junk e-mail
  • Unwanted posts on a website
  • Unwanted comments on a post on a website
  • A large number of posts designed to crash a system rather than provide useful content

For our canonical Q&A about how to prevent email you send from being flagged as spam, see How to send emails and avoid them being classified as spam?.

1396 questions
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Spam Filters - Why does the same message fail via one smtp server but not the other?

I have a PHPMailer script sending email. If sent via postfix localhost it is marked as spam with these headers. Delivered-To: xxxx Received: by 10.58.210.166 with SMTP id mv6csp82473vec; Sun, 15 Sep 2013 16:05:58 -0700 (PDT) X-Received: by…
Chris B
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sendmail - Server Sending Spam?

for the past day my server is being used to send a spam. I'm using the Amazon Linux Distro (RedHat based). It has sendmail 8.14.4. It is setup to require authentication, SSL etc. Below are some excerpts from the log and mqueue. How can I found what…
jira
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sieve in dovecot is not filtering spam message

In Centos 6.4 i use postfix with LDA Dovecot and webmail squiremail, amavis-new with spamassassin. Spam is marked with subject Spam. I want in my squirelmail to filter spam messages an move in to folder spam. I use sieve script…
mardon
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Using Spam Assassin as email proxy

I'm looking to setup a Spam Filter Proxy for my clients, not too many mind you, and have it as transparent as possible. I read about SAVASM and Spam Vigilante, and while they are perfect I guess for the job, I can't install them directly to the…
Anthony
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Setup Exim on cPanel to only send FROM authorized addresses for php

I run a cPanel host for my web clients, It has exim set as it's mail server. I have many clients running CMS'(mostly old joomla 1.5 which is nolonger maintained for security) that keep getting hacked to send spam from fictitious email accounts…
wmbf86
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Sendmail mqueue deferred (list.dsbl.org)

Hi I have a issue with a mailserver configured with sendmail. In mailq I have many entrys with: (dnsbl map: lookup (254.0.168.192.list.dsbl.org.): deferred) Thanks.
user2210184
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Hotmail blocks company emails, when hyperlink is inserted in the message body

I received the following results: ========================================================== Summary of Results ========================================================== SPF check: pass DomainKeys check: neutral DKIM check: …
cmpt
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2 answers

All Details of a Running Process

Possible Duplicate: How do I deal with a compromised server? This process is running on my Linux server and is sending spam (connecting to port 25 and port 80 with random IP's). top - 12:28:42 up 108 days, 2:24, 1 user, load average: 0.08,…
user1873584
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Are there spam filters that check email headers?

Are there spam filtering technologies that examine email headers? For example; X-PHP-Origin header can contain an IP address that is on a blacklist; are there spam filters that would catch this? I thought spam filters only checked the connecting…
user101130
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Research in Motion UK Limited : "Recently reported spam source"?

I've come across several IPs that are marked as belonging to RIM/Blackberry but seem to be a source of spam/fake users to our sites, examples : http://whatismyipaddress.com/ip/93.186.16.213 http://whatismyipaddress.com/ip/93.186.23.80 Normally we…
Sherif Buzz
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uploading php files into my root folder and sending spam

Possible Duplicate: My server’s been hacked EMERGENCY i do not understand how but someone is uploading a php file into the public_html directory of my CentOS 6 server like statisticsuQPo.php this php file gives me…
Mustafa Oenal
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Major web hoster detects my emais as SPAM or JUNK, why

Possible Duplicate: How to send emails and avoid them being classified as spam Whenever I send emails from my domain using PHP it goes to spam , when ever user register to my site I send them message saying welcome along with a image and…
lon3r
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stopped receiving email from our own server

I have a website with a registration system, that sends new users a confirmation email after registering, and sends myself a new user registered email. A few weeks back, I created a newsletter subscription system. While testing it, I sent around…
Amit Patil
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spam keywords to block in mail

Can anybody suuggest me a list of keywords which i can block in mails which are sent from my postfix mail server.I wanna include them in my postfix header checks and body checks file.
ACHAL
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Postfix; Why did this email not get blocked?

Consider the following junk email received in which the recipient address is the same as the sender's address, but this users didn't send them self the email, it is junk mail; (All hostnames and IPs have been changed for privacy): Return-Path:…
jwbensley
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