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

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55 views

Advertise NO-SOLICITING (RFC3865)

Does it bring anything to specify the Solicitation class keywords in Advertise NO-SOLICITING as per RFC-3865? For instance: dom.spammer:ADLT,dom.listing:ADV
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1answer
122 views

Spam sent from fake email accounts on my domain [duplicate]

One of my clients is getting thousands of "Delivery Status Notification (Failure)" emails per day and it's replied to random email accounts that don't exist on the domain. The content of the emails ...
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1answer
36 views

SpamAssassin: Spending responsability for user blocks

Currently 99% of my clients have their sites on hosts that use CPanel. In CPanel, there is available tool SpamAssassin (spam filter), where I manage the blocks of my clients, adding addresses to the ...
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0answers
57 views

How can I prevent my messages from being marked as spam by Gmail? [duplicate]

I'm working on a PHP application. Swift Mailer is used to send messages to clients. Messages are personal (like appointment confirmations with specific dates/times for the receiver), so we're not ...
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1answer
56 views

Email rejected as spam goes through on a reply [duplicate]

Having some problems with mail messages which are rejected as spam when sent directly to a user at a certain company address but if that users sends us a message and we reply, it is accepted. If I ...
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1answer
114 views

receiving phishing/spam from known address names and localhost

We are using SmarterMail 11.2 and are receiving spam from senders in our address book (name only, different email). In the header i see "Received: from localhost" and other suspicious things. In the ...
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1answer
116 views

Dovecot Forward Spam

I was wondering if anyone had any knowledge on how this idea can be done. It's not a requirement but more of an idea I came up with that I don't know how to word my google searches to find out if it's ...
2
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1answer
134 views

Iptables rules order

I have following script, which I found somewhere in the Internet, and I modified it a little bit to suit my needs. My question is: If I understood output of iptables-save my iptables rules are ...
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2answers
339 views

SPF, DKIM, PTR & friends Passed, but postfix mail goes into spam How to Fix it? [duplicate]

I recently setup an email server with static IP address, (Ubuntu 12.04 & Postfix); Everyting looks OK, I did te test@allaboutspam.com test and everything passes in green (except for BATV format ...
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3answers
728 views

Mail spam sending script injected

I apologize if this is already asked a million times. One of accounts on my server got hacked. An email spam sending script is injected and sending ton of emails to some random addresses. I have ...
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1answer
271 views

how to block network level mail spammer?

Here is the packet capture of how the attacker is coming to my server and generating Huge amount of spam, i am not able to block it by any means. 220 mta1497.mail.ne1.yahoo.com ESMTP YSmtpProxy ...
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1answer
108 views

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 ...
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1answer
292 views

amavis doesn't quarantine all spam mails

I'm trying to create a special mail account to collect all incoming spam with the purpose to later on be able to train the SA more easily for the whole domain. We're using Zimbra, but as far as I ...
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1answer
414 views

Gmail marks email from my server as spam [duplicate]

I'm configuring a new mail server, but have trouble with the e-mail: gmail marks it as spam. I've checked all the obvious things (SPF, DKIM, Reverse DNS, IP adress blacklisted or known spammer). OS is ...
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2answers
1k views

Server compromised. Bounce message contains many email addresses message was not sent to

This is not a dupe. Please read and understand the issue before marking this as a duplicate question that has been answered already. Several customers are reporting bounce messages like the one ...
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2answers
422 views

Configuring Postfix, Spamassassin and Procmail to put spam in a dedicated folder

I'm not sure if SF is the good place for that, so sorry if it's not the case. I'm administrating a Debian server for our company's emails and I'm trying to have the emails flagged as spam by ...
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0answers
108 views

Return-Path showing spam coming from my domain?

So I just logged into an old email address to see a ton of similar messages like the one below: To: "oliver@example.com" <oliver@example.com> Content-Transfer-Encoding: 7bit Mime-Version: 1.0 ...
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0answers
411 views

Postfix server begins send spam immediately after starting

I've installed a postfix server on a debian os & also I've installed apache 2.0 with php on same machine Several days ago my server begun to send a lot of spam messages via postfix. I understood ...
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2answers
475 views

How to detect and prevent postfix from dishing out spam email from compromised mail account

We host email and websites for numerous customers on a dedicated server running CentOS and configured through Virtualmin. Email is handled through Postfix. Over the weekend we noticed that a clients ...
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0answers
248 views

EXIM4 sent mail sometimes rejected, always put in spam. DKIM and SPF pass + reverse DNS

Recently I've been seeing some instances of Your access to this mail system has been rejected due to the sending MTA's poor reputation. in my maillog and have noticed that my emails have been getting ...
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1answer
75 views

Mail From Outlook/Exchange Sent to Destination Spam

I have a unique problem and I am hoping someone may have some direction to provide me. We have a Windows environment with an Exchange 2007 Server. For some reason when a user sends an email from ...
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1answer
171 views

Emails from server going to junk/spam in Outlook and Gmail [duplicate]

Althought I have setup my rDNS correctly and have SPF and DomainKeys setup on my cPanel server I'm still getting all emails sent from our mailserver to spam, unless the domain is whitelisted by the ...
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1answer
266 views

How to find which local process is sending spam on a Windows Server 2008 server

I am managing a Win Server 2008 system with a number of hosted web sites. Recently I found that something was sending spam through our SMTP server. The logs indicate that the connections were being ...
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2answers
102 views

Spam originating from my account, SPF records did nothing?

Recently I have been receiving emails that apparently originate from my account about Russian hackers, I've set up an SPF record to try and stop this but it has made no difference and I have updated ...
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0answers
309 views

php mail + postfix with multiple domains send from right domain?

i followed this tutorial to set up Postfix+Dovecot+postfixadmin on Ubuntu: http://www.exratione.com/2012/05/a-mailserver-on-ubuntu-1204-postfix-dovecot-mysql/ I want to send emails from multiple ...
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1answer
76 views

Avoid spammers who download content for the sake of using bandwidth

My company has a product which is downloadable through our website. Since day one, we've been continuously spammed by bots trying to download a little bit of content all the time (usually 4 MB out of ...
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1answer
770 views

Sendmail Spamming Recipient

I am using a perl script to send daily status to my gmail account. For some reason, sendmail seems to be spamming gmail although I am only sending one email Gmail is complaining about a failed ...
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1answer
226 views

Our outgoing emails from a shared hosting provider (Bluehost) are returned because the server is listed as SPAM SERVERS

I am getting very frustrated with this web hosting provider -- Bluehost.com. We have several small business sites hosted with them. We also use email accounts provided by the Bluehost for our outgoing ...
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1answer
599 views

How to re-create Qmail queue

Qmail has 500 00 messages in queue and I installed qmHandle to help sort out the spam in the queue. This process has taken a long time and alternative scripts like qmail-remove also take time. I want ...
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3answers
1k views

Send spam mail to a special folder using postfix

I have a postfix server running amavis and SpamAssassin to help filter spam. Messages that are detected as spam look like this when delivered into the user's Maildir: From tom@tom-mint Fri Mar 15 ...
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2answers
1k views

Email does not pass hotmail filter #Update

I have problems sending an email from my server to hotmail it will not pass the junk folder. This is the header from an email send to hotmail: x-store-info:4r51+eLowCe79NzwdU2kR3P+ctWZsO+J ...
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3answers
631 views

Where can I find a list of IP addresses of hosting providers?

I am attempting to fend off a spam attack against a web api I run and would like to obtain a list of IP addresses of public web hosting providers from which spammers are launching their attacks. I'm ...
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2answers
217 views

Blocking spam on Ubuntu 12.04

We seem to be having a lot of spam emails in our mail.log file. For example Mar 11 18:23:01 localhost postfix/qmgr[1452]: 87945226BD: removed Mar 11 18:23:01 localhost postfix/smtp[8809]: 87945226BD: ...
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1answer
102 views

Set up spf and dkim, where email domain and sending domain differ

I have two domains: foo.com and bar.com Only foo.com is using Google Apps and thus can send emails. I now have a service running on bar.com\application that uses the email application@foo.com to ...
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4answers
349 views

Stopping incoming spam with sendmail [duplicate]

I am having an issue due to a "smart" sysadmin that made some choices while I was away for two months: Spam. I manage probably close to 10,000 web/mail sites. He decided to allow all mail to ...
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1answer
1k views

Plesk 11 Set firewall rules manually

I have a big spamming problem on my site from ip addresses coming from Asia. My website is designed for people in France and Canada, so I want to block all ip addresses from Asia to avoid spam. I ...
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2answers
66 views

Emails from my server are delivered to spam

I have virtual server (Amazon EC2). Emails from it (postfix) are sent into spam folders to some of the email services. And they are not sent to some emails (including some addresses on gmail). There ...
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0answers
273 views

UID 33 sending SPAM

Please help! On sunday I started receiving a lot of email bounces which I investigated right away and saw someone who hadn't logged in seemed to be using vbulletin's sendmessage.php to send SPAM as ...
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1answer
353 views

A record blacklisted but not the originating IP of affected messages - Gmail rejections

A customer's email is being rejected by gmail with the following codes: Action: failed Status: 5.7.0 Diagnostic-Code: smtp; 554 5.7.0 Reject, id=17756-61 - SPAM I see the A record for the domain, ...
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1answer
84 views

Is there a system-wide way to flag a message as spam in Exchange?

Every once in a while a spam message makes it into the network. The spam message might go to one or more recipients. When sent to multiple recipients, the emails are addressed only to individuals (vs ...
0
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1answer
151 views

Error from Postfix server: mail for cacti.snowbarre.co.za loops back to myself

My setup is that my central mail server, CM forward to an anti-spam server, cacti which acts as an SMTP server. On of the email addresses on CM has been getting 40 emails generated apparently as a ...
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2answers
532 views

Why are my emails going to spam folder?

My server ip is 78.46.138.249 and none of the blacklists I could find blacklist my domain. Nevertheless, many of my customers recieve their emails in their SPAM folder. I just created a live.com ...
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1answer
192 views

Barracuda Spam Filtering vs. other enterprise level solutions [closed]

I am looking for comparison of enterprise level spam filtering solutions in the context of Barracuda Filtering - pros and cons kind of summary. I did hear a lot of negative noise about Barracuda Spam ...
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2answers
2k views

cPanel Server Email to Gmail marked as Spam, SPF, DKIM, and rDNS pass

Having this issue on a cPanel server 11.34.1 that hosts multiple domains. Email originating from this box on the sendingdomain.com address is flagged as Spam by Gmail. I've implemented SPF and DKIM, ...
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1answer
95 views

Checking SPF for outgoing mails

Is there any particular reason why I should not perform SPF checks for outgoing mails? I was reading on some articles that "you should not perform SPF checks for outgoing mails", why? I'm doing SPF ...
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1answer
95 views

Possible spam emails from our server but not from our domains

I encountered something weird with my mail server. For about 3 days now I am noticing that my mail server sending emails that aren't included in my domains. There are from different IPs different mail ...
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1answer
204 views

Received-SPF: unknown domain of _netblocks2.google.com uses a mechanism not recognized by this client

We've configured SPF for our Google Apps For Your Domain domain some time ago, and resources like mail-tester.com validate it as setup correctly (we also have DKIM, etc). For the past year however, ...
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0answers
42 views

Uncontrolled spam sent from server [duplicate]

Hi I have shared hosting on a UK2 server that got suspended again. They claim that my account is sending SPAM messages but the problem is that I can't trace those from the information they've given me ...
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2answers
51 views

Second mail server for my domain [closed]

I have to setup a mail server because my hosting account don't allow me to send over 250 mail/hour. I have a HP microserver at home and I want to use it to send the mails. I configured Virtualmin on ...
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2answers
2k views

Configure postfix with a threshold for reject_rbl_client

I have my postfix main.cf configured with a number of blacklists: smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_sender, ...