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

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56 views

Emails keep going to Gmail spam folder - DKIM, SPF, are set up - Very perplexing [duplicate]

Note: This is NOT a duplicate question, there are no questions that address the very specific details of headers as far as whether the inclusion of multiple DKIM entries will result in landing in the ...
-2
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0answers
18 views

how to check outgoing mails

i when i check my mails status i see an ip try to connect on my IMAP mail server here is what I get: LOGIN, user=xxx@yyyy.com, ip=[::ffff:23.27.18.118], port=[52490], protocol=IMAP Mar 30 21:35:21 ...
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0answers
14 views

suffering spamming here is the exim log [on hold]

suffering spamming here is the exim log 2015-02-20 10:07:08 1YOr2c-0008Ip-2s <= info@condoshark.ca H=(condoshark.ca) [186.11.37.214]:51574 P=esmtpa A=dovecot_plain:info@condoshark.ca S=1609 ...
2
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2answers
1k views

What is the email SPF entry for sending from Yahoo!?

I have a client that is sending email from a Yahoo! Plus account as if from her own domain. Is there a way to set up the SPF record so that it covers all of Yahoo!'s outgoing servers? i.e., what do I ...
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0answers
14 views

My VPS is used for spamming - spambot [duplicate]

It is sending some polish emails and using our two email domains, i tried to disable email via php.ini, but it doesnt help, so the problem must be in VPS. I also tried to update software, but it ...
5
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3answers
62 views

Does “~all” in the middle of an SPF record signal the end of the record when it is parsed?

Our company's SPF record format is as follows: "v=spf1 include:_spf.google.com ~all a mx ip4:X.X.0.0/23 include:spf.example.com ?all" So we have an "~all" in the middle of our SPF record. On the ...
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4answers
208 views

Remove blacklist from spamRATS

I have checked my IP in SpamRATS and the result is the following: Standards Compliance: Does IP Address resolve to a reverse hostname... Passed! Does IP Address comply with reverse hostname ...
1
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1answer
21 views

Hotmail/Outlook dumping apparently valid emails

I've written some software that operates a non-commerical contact list for clubs, where the server sends out admin mails to the entire club. The emails are received Ok on Yahoo, gmail, and AOL, but ...
2
votes
1answer
5k views

Exchange 2003 mail non-delivery (NDR), spam activity? events 7002 & 7004

Windows Server 2003 Small Business Server SP2 Exchange Version 6.5 (Build 7638.2: Service Pack 2) This network has been neglected and has been having email problems for years and was on many ...
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4answers
1k views

How do I bypass Exchange 2007 SenderID Spam filtering on mail coming from a particular domain

I have some emails which are been deleted as spam and the AgentLog files contains the section ... Sender Id Agent,OnEndOfHeaders,DeleteMessage,,MissingPRA,No valid PRA, I would like to configure ...
3
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2answers
225 views

Blocking PHP mailer spam using iptables

I host a public-facing web server running Debian Wheezy, and latest versions of Postfix, Apache, PHP, Spamassassin, ClamAV, rootkit hunter. Apache is configured with a handful of vhosts, each tied to ...
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1answer
1k views

Exchange 2010 email spoofing prevention

Masters, Unfortunately we got some spam mail which seems to be coming from our own domain. I found some article which all says to remove Anonymous login from internet receive connector ...
0
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0answers
4 views

Should SpamAssassin tests/rules differ between implementations? [migrated]

Disclaimer — I have no experience installing or maintaining servers of any sort. I'm asking here as my webhost isn't giving straight answers and am hoping to find some clarity. I'm having an issue ...
1
vote
1answer
58 views

How to send a custom reject notification in Qmail (badmailfrom File)?

i´m using QMail and i want to reject various emailadresses (domains). I found the following way: Block Email Senders in QMail: /var/qmail/control/badmailfrom When i block a sender he will get the ...
2
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1answer
24 views

Postfix Limit mail for domain from IP range

I have multiple domains and email accounts on my postfix server. All of them get slammed with spam despite all my attempts to get it under control, I broke down and started paying for a pass external ...
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votes
1answer
43 views

how to prevent fake mails from being sent on my mail server? [closed]

I use Zimbra as my office email server. Recently, an intern at my company showed that he could use my email id (without hacking into my account) to send emails to anyone in the company using the ...
1
vote
2answers
101 views

DNS and SPF configuration for Microsoft Exchange

We've started receiving spam with spoofed addresses from our own domain. So I'm trying to get my PTR and SPF records etc correct to prevent it. We're running Exchange 2010 on site with one server ...
2
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0answers
28 views

Exchange 2013: content filtering bypass

I have just completed a migration from a single Exchange 2007 to 2xExchange 2013 servers in separate sites. Mailflow is working correctly, but the anti-spam content filtering is not working as ...
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1answer
22 views

Automated email sent using Bash mail function gets filtered as spam by Gmail [duplicate]

I have a Bash script which is scheduled to run everyday and sends out user notification emails using a command like: mail -s "Hello World" someone@gmail.com Why is this email detected as spam by ...
2
votes
1answer
118 views

Single MailCleaner installation for two distinct domains with user authentication

I would like to use one MailCleaner installation to handle two distinct domains as one centralised spam management system, sharing configuration and mainly the bayesian filtering database. Both ...
0
votes
1answer
166 views

Most simple, easy to service and update DIY spam/virus filtering SMTP gateway

I run email for several companies, and I want to set up my own SMTP gateway to migrate their domains off hosted spam filtering services. I wanted an opinion from someone who actually runs email ...
3
votes
3answers
294 views

Exchange 2007 ineffective spam filter

On a pretty clean 2007 setup, I'm seeing A LOT of mail with senders such as : 0.0011a7f8@roman htyme@14009d3cb93848c 0-lz@14009d3cb93848c 0-5-1@home-4fd909062d 0-td@h109-187-48-125.dyn.bashtel.ru ...
0
votes
1answer
21 views

Exchange 2007 ignores whitelist (BypassedSenderDomains) when IP is found on a block list

On my Exchange 2007 machine I configured the IP block list provider to query zen.spamhaus.org bl.spamcop.net dnsbl.sorbs.net some of our business contacts or on those lists and get blocked by ...
0
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0answers
13 views

How to remove an entire Qmail queue? [duplicate]

I have a Qmail MTA queue with 100k messages in the queue. How can I remove the entire queue? I need to regain control of my machine, I will investigate the compromised php scripts afterwards. The ...
1
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1answer
30 views

Benefits of separate firewall product over AWS Security Groups for spam requests

I have a question that is an extension of this one: Examples where an AWS Security Group is not sufficient as a firewall?. Initially, the answer in that question made sense to me and I was working ...
1
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2answers
58 views

How to block IP addresses from port 25 [closed]

PROBLEM: Users are getting 15-20 SPAM emails per hour, even with SpamAssassin set to its most aggressive settings SOLUTION: SPAM filtering services are available from companies like McAfee (Intel). ...
0
votes
1answer
27 views

Blocking spam with SpamAssassin [duplicate]

I have a server that runs websites and exim for e-mail. I've added countless RBLs including barracuda to try and cut back on incoming spam. However, they still keep coming in. The clients use ...
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votes
1answer
162 views

How to prevent hackers from accessing my cPanel through a hostname instead of IP? [closed]

On my new dedicated server in which I have cPanel and WHM, I keep getting daily "large number of failed attempts to login from xxx" where xxx is an IP. So I blocked massive amounts of entire IP ...
-1
votes
1answer
618 views

How to stop server sending spam out. Centos server with exim [duplicate]

I'm looking at a server that appears to have been compromised via a bug in a wordpress plugin and is now sending spam out. This post seems to give a very good report of exactly what I'm seeing. ...
1
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1answer
51 views

postfix header_checks - regex spanning multiple lines

I would like to create a spam filter that spans multiple lines in headers. This is my /etc/postfix/header_checks file: /^From:.*name[0-9]+@.+[\r\n]+To:.*name@domain\.com/ REJECT It's a valid ...
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votes
2answers
40 views

Emails from my domain getting blocked at all other domains [duplicate]

Recently I tried to set up a new email server using iRedMail on Lubuntu. The mail server workes very well when email conversation is in the same domain. But when a user tries to send email to some ...
0
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0answers
16 views

Scraping log to identify emails sent to another MTA

I have a Courier MTA that seems to be sending spam. I want to scrape courier's mail.log to identify, for each mail that was sent to another MTA: The from address Where Courier got the email from ...
1
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1answer
533 views

FROM: header is forged, SENDER: is legit , spam is delivered. how to detect?

In short: What happens: FROM: header is forged, SENDER: is legit , spam is delivered. What I need: Detect forged FROM: header when possible, block delivery Explained: I have a exim server that ...
1
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1answer
1k views

SpamAssassin doesn't appear to be 'learning' from forwarded examples of spam

I have spamtrap@ and hamtrap@ addresses set up on my mail server and forward examples of spam to the spamtrap address. I was hoping that after a few examples, SpamAssassin would 'learn' to identify ...
2
votes
3answers
550 views

Chinese bot visiting non-existent page every 5 minutes

Since 02.05.2013 some sort of bot is visiting my website, every 5 minutes. Most of the time it calls this URL, which doesn't exist: /viewtopic.php?f=3&t=849 Always with this user agent ...
2
votes
2answers
65 views

Block people searching for server admin pages

Occasionally I flip through our (apache) access log and I often come across people trying to fish for admin pages. For example, they are trying to access pages like: /wp-login.php ...
0
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0answers
31 views

Server exploited, perl script sending spam [duplicate]

my server with centos 6 is sending massive spam. Before move the backup on the new clean server, I must understand what is going on. let's read some logs mail log Jan 10 14:21:00 vps63495 ...
53
votes
6answers
16k views

Fighting Spam - What can I do as an: Email Administrator, Domain Owner, or User?

This is a Canonical Question about Fighting Spam. Also related: How to stop people from using my domain to send spam? What are SPF records, and how do I configure them? There are ...
0
votes
1answer
557 views

dkim-milter appears not to be signing my emails correctly

I have a VPS that I had a fresh install of CentOS 6 on it and then I installed virtualmin on it and we've been great for a few months. I've been hosting a handful of domains from there and on one of ...
14
votes
8answers
8k views

Why do 'hackers' setup bots repeatedly fill out web forms?

There is something I don't get, one of my web apps has a small form that allows you to enter you name and email address to "subscribe" to a user list for a site I maintain. The site is very low ...
1
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2answers
413 views

Mail goes to spam when using `mail` from command line

I've a CentOS 6.4 server. When I send an email using the mail command from command line, it's always marked as spam by Gmail. So, every system emails go to spam and so do every emails sent with a PHP ...
1
vote
5answers
783 views

What is the easiest to install and maintain email server? [closed]

I really don't like administration tasks but i need a VPS (a naked Debian system - no control panels) for some reasons. One thing that scares me is the setup of the Mailserver - never done this before ...
12
votes
10answers
2k views

Using fake MX records to combat spam

I have a client that is getting heavily spammed.. It's the 15th of the month and POP3 bandwidth is almost 100 GB. There are only 7 e-mail accounts on this domain. I installed SpamAssassin set it to 5 ...
1
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3answers
2k views

How to block this URL pattern in Varnish VCL?

My website is getting badly hit by spambots and scrappers. I've used Cloudflare but the problem still remains there. The problem is spambots accessing non-existing urls causing a lot of load to my ...
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votes
0answers
12 views

Spam in server using EM Client

In em client, I added a rule that will delete the spam permanently. Now, my question is, will it still be listed in our server or the spam message will not be included in the list?
3
votes
1answer
74 views

Why am I getting these emails?

Awhile ago I noticed that email messages from my domain is not immediately delivers by google, and I'm getting an smtp error message from google server. I don not remember the exact wording of that ...
0
votes
2answers
88 views

opensource feedback loop implementation for email and webmail integration

I would like to find out if there is an opensource software that implements the Feedback Loop. I will try to be more specific. I want my clients to have the ability to report a message as spam and ...
4
votes
5answers
9k views

How do I get my server off the ivmSIP/24 blacklist?

I checked my server IP using this tool: http://www.mxtoolbox.com/SuperTool.aspx It's come up on the ivmSIP/24 list. What can I do to get my IP removed from this list? I have SPF records set to ...
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votes
0answers
18 views

Gmail - Outgoing emails rejected as spam [duplicate]

I've been running Gmail / Google Apps for a client for about 6 months now. Initially, everything ran smoothly but for 2 days now various users have had emails rejected due to the target servers ...
0
votes
1answer
3k views

Plesk 11 Set firewall rules manually [closed]

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 ...