Tagged Questions

Spam is the use of electronic messaging systems (including most broadcast media, digital delivery systems) to send unsolicited bulk messages indiscriminately.

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7
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1answer
1k views

How do I stop attack on my email id from hackers?

We have an email id, info@<ourdomain>.com This email id is being hacked frequently and mails are sent from this email id, Following is the example of one such email. From: ...
0
votes
1answer
72 views

How will Gmail be able to detect SPAM and display ads when emails are encrypted end-to-end?

Context Google is making end-to-end encryption easier to use. SPAM How will they be able to perform SPAM detection when the email is transmitted and stored encryptedly? I suppose that if the SPAM ...
27
votes
10answers
6k views

How to explain to a customer that spamfilters don't catch everything

I used to work in a small office which provided basic desktop support for users. One day I had to answer a call from a very angry customer and he asked for my boss. He wanted to know how could one ...
2
votes
1answer
44 views

Preventing users abusing emailing feature of web application

Our web application offers users with the option to bulk email a bunch of interesting information to multiple email addresses at once. It's fairly easy to register an account with the service and thus ...
0
votes
1answer
227 views

How to report abuse spam with X-AntiAbuse header which was added to track abuse?

I've received the following spam e-mail (with the link to viagra site): Return-Path: <silviani@server04.funet.co.il> Received: from server04.funet.co.il (server04.funet.co.il. [212.29.215.70]) ...
0
votes
0answers
33 views

What does proxyexec + cagefs.server mean in the e-mail X-Source-Args?

I've the following headers in the e-mail which I've received as spam: X-Source: X-Source-Args: /usr/sbin/proxyexec -q -d -s /var/run/proxyexec/cagefs.sock/socket /bin/cagefs.server X-Source-Dir: ...
4
votes
2answers
108 views

Human or Bot: Behind the Scene Checks vs CAPTCHA

I'm working on a web app at the moment where we’re trying to remove any user friction and excess steps from our user creation page. To avoid computer bots completely spamming our app we need to have a ...
0
votes
1answer
50 views

Trying to get control of spam? [closed]

Hopefully this question is deemed acceptable for this area of stackexchange. if not let me know what other site to use. Anyways i'm seeking advice on how you try to eliminate spam in your daily ...
1
vote
2answers
137 views

Using + for email addresses to find out who is selling your data: is it naive or is it effective?

It's pretty common among security-minded folks to fill in addresses using e.g. foo+company@gmail.com when disclosing their email address to company so that they can tell if company has sold their ...
6
votes
1answer
139 views

random-string spam probe messages?

For years, we've been receiving messages through our contact form in the following format: name: vlsyekcz email: jjthiy@toaagq.com subject: BdsQiWYlYo body: 2BLgIr <a ...
0
votes
2answers
64 views

What are the disadvantages to the site owner to have third parties e-mails displayed publicly?

I frequently have to remind my members not to post their e-mails due to spam bots. One of them told me he doesn't care about that since his spam filter is good enough. If I allow him to do that, are ...
0
votes
1answer
112 views

How to stop gmail spam after connecting to public wifi without VPN on Android?

About two weeks ago, I had to reply to an urgent email (gmail) on my Android phone with the Gmail app. Unfortunately, my VPN client refused to work that day (Private Internet Access Android Client), ...
0
votes
2answers
66 views

Does using unicode or (at) actually stop spambots?

I want to make my email address available on my website and I was wondering if there was any point in using the "(at) (dot)" convention these days. If I was writing a script to trawl for email ...
0
votes
1answer
178 views

How do botnets deliver spam? [closed]

I can't seem to find the answer to this question. I read that botnet bots are used as email relays (they have smtp servers installed). Wikipedia on Open mail relay: "(...)Internet initiatives to ...
2
votes
4answers
296 views

HTML Entities to hide Email Addresses

I'm on WordPress trying to keep spambots from grabbing email addresses that may be in The Content. WordPress has a nifty little function simply called antispambot() which will convert the email ...
0
votes
1answer
44 views

Email and Black Hole List Submission?

I'm having trouble with a spammer and would like to begin submitting their messages to a few black hole lists. Unfortunately, I'm having trouble finding a list. For example mail-abuse.org now ...
1
vote
1answer
135 views

My server was used for sending spam. Will our server ever be trusted again?

A while back I enabled SMTP on my IIS server with the intention of using it for internal email notifications. It seems that somehow hackers were able to use it for sending out thousands of spam ...
1
vote
1answer
153 views

Postfix periodic relay access denied

I administer an Ubuntu Server 14.04 which acts as a mail server running Postfix and was configured following most parts of this tutorial: ...
-1
votes
3answers
227 views

Is there a safe way to open a possibly spam facebook attachment?

I got a spam attachment from two of my facebook friends I know it is spam because of the nature of the content I also know that these aren't the type of people to send such a message to me ...
0
votes
1answer
416 views

How to combat and prevent a lpcloudsvr302 and bk-coretag.js Virus?

I recently came across a computer that was infected with a lpcloudsvr302 and a bk-coretag.js Virus. I did some research about the two Viruses and realized that their is no reliable source that helps ...
153
votes
3answers
12k views

What is the purpose of “gibberish” comments posted to my blog?

Fairly frequently, the contact form on my blog gets comments that look similar to this (each field represents a text box users can enter into the HTML form on the blog): Name: 'ceguvzori' Email: ...
15
votes
4answers
4k views

Is this “Domain Registration Service” email a scam?

I received an email to the email address listed on our website (it's a generic info@ourcompany.com to help "weed out" spam, whereas each employee has something like andreas@ourcompany.com to which I ...
-4
votes
2answers
129 views

Is it legal to hack forum bots? [closed]

I have a standard forum, currently plagued with bots. In the registration agreement, I included the following text: SPAMBOT OWNERS, YOU HEREBY WAIVE ALL YOUR RIGHTS TO PRIVACY. ANY AND ALL ...
1
vote
3answers
877 views

Email activation string with MD5'd random number and email secure?

For the registration on my PHP powered website, I require email confirmation. After a user registers, a string is generated with the following code and sent to their email address. $key = ...
5
votes
1answer
171 views

spam: several secret inboxes targeted at once. risk or coincidence?

I have a domain that is only used by me, with several inboxes in the format aep-x-company@domain , where i replace 'company' with wherever i sign up. This way i can detect when someone sells email ...
0
votes
1answer
108 views

Is it useful to use 'dot' and 'at' in email addresses in documents on the web? [duplicate]

My question seems to be a mash up of two questions. The first is that over at TeX.SE there is a question about creating PDFs with crawler resistant email addresses. There are some good answers about ...
21
votes
4answers
2k views

What are spambots doing with unintelligible login attempts?

After constantly being under attack in phpBB, I created a new forum by hand, which successfully prevents spam bots from registering, and I get a report for every failed login attempt, telling me the ...
0
votes
2answers
78 views

Email rejected by the server [closed]

Emails from site such as Gmail and Yahoo are rejected from secureserver.net server and treated as a spam. Can you help me?
5
votes
3answers
534 views

How did the spammers get this address?

A few months ago I configured a test mail server on Amazon AWS, all legit. I used a new address to my catchall-domain (something similar to, but not exactly, ...
2
votes
1answer
84 views

Proper way to target spammers on pages such as user registration, password recovery, etc

What is the best way to handle spam on pages like user registration or password recovery? I am not asking about whether to lockout a user for a few minutes or how to put up a captcha. I'm interested ...
8
votes
4answers
290 views

Best practice for informing a website they've been compromised?

I've received a spam email that claims to be invoicing me for some service in New Jersey, USA with whom I've not had any dealings. The email includes a link to a zip file that is hosted on a greek ...
5
votes
3answers
160 views

SPAM Email Analysis

What are the steps you would follow in order to identify in an email is a SPAM/SCAM/Phishing attempt? The reason I am asking this question is that sometimes very well crafted junk emails manage to ...
1
vote
2answers
486 views

How to Check if my mail is classified as Spam

I think several of mails are classified as spam.But Gmail and other Public Email providers has no issues. It might be a false positive cases with the associated tools Is there a tool or a way by ...
3
votes
1answer
196 views

What kind of requests are those?

I receive a lot of requests like this: ip-10-80-XXX-XXX.eu-west-1.compute.internal:80 110.249.208.XXX - - [11/Dec/2013:10:27:17 +0000] "GET ...
2
votes
1answer
89 views

Risks and prevention methods associated with flagging or downvoting?

Similar to bots posting spam posts and blogs is it possible that bots with legible registered accounts go around the site flagging or downvoting everything on the site. If yes, what can I do to ...
0
votes
2answers
94 views

Is there any any security threat due to advertisements?

I was working on my localhost in my computer but I was connected to internet. Recently I downloaded a few music files and since then advertisements are getting popping into my browser through which I ...
0
votes
1answer
181 views

can one stop spam with my name but not my address [closed]

IS there a way to stop getting spam that is from my name but not my e mail address I am receiving many spam letters using my name but different e mail addresses.
0
votes
1answer
107 views

How to investigate this anomaly?

According to the IT managers, this problem is neither at the server nor at the client but is suspected to be somewhere inbetween e.g. some DNS server that has been infected. Do you recognize this ...
51
votes
4answers
3k views

Is using 'dot' and 'at' in email addresses in public text still useful?

When entering your email address publicly, a practice is to replace . with text dot and @ with text at. I assume that the reasoning is that this way automatic email-collector robots won't match your ...
0
votes
1answer
339 views

What is the attacker trying to do? (maybe just spam my form) [closed]

I have a PHP-included form that tells me the URL the customer was visiting when they fill it out. The content of the message was either jibberish or poorly handled by the form. (it looked mostly like ...
1
vote
4answers
271 views

How can these spam emails be accessing email accounts on respected domains?

Today I received a spam email from juliew@mchs.org.au requesting to contact Harry Black about a charity project. His email address is harryblack2013@rogers.com. After I had done so and fallen for the ...
1
vote
4answers
207 views

Spam title includes unusual words from my recent emails

Occasionally, I get spam that includes in the subject line an unusual name or word that appears in other (legitimate) messages I recently received. Perhaps a coincidence, I thought, until it happened ...
1
vote
2answers
343 views

Email spam targeted at a pair of users

Two users on my domain are receiving spam emails that have both of their emails in either the To: and/or CC: fields. There are many other users on the domain, but only these two are receiving spam ...
6
votes
3answers
746 views

Why does a spam sms contain a link to an email address?

A colleague of mine just received a (spam) sms with this message: Congratulations! Your mobile have won $1,000,000,00 Pounds with Draw# 294 64/2013. For more info & claims, contact our ...
0
votes
1answer
73 views

Is there any anti-spam solution focused on preventing Replies from hitting spam?

If I were to reign in the problem scope of this other question, is there any proposed or current RFC focused on preventing replies of previous messages from hitting SPAM quarantine? The previous ...
2
votes
2answers
126 views

It it a good idea to whitelist inbound email using a Hash on the address? (Similar to BATV, but with DKIM)

Problem Statement I'm looking at ways to ensure that business partners, or emails from trusted senders, never get quarantined; ....in other words prevent "ham being seen as spam". Ideally this ...
0
votes
1answer
207 views

Website Link Spam Hacking Protection [closed]

I've recently been employed as a junior web and software developer for a small company, and noticed that their Home page has had links to completely unrelated sites added like spam to the index.html ...
2
votes
1answer
179 views

Should admin make SMTP to do sanity checks?

Open SMTP relays are bad. The major email providers such as Gmail and Yahoo do some sanity checks such as the following at the SMTP level to prevent spam to arrive the users' mailboxes: $ telnet ...
2
votes
4answers
2k views

How to check if range of IP addresses are SPAM blacklisted?

While it's easy to check if a single IP address is blacklisted for SPAM using for example http://www.spamcop.net/bl.shtml, then is there a way to check multiple addresses at once? For example how to ...
-2
votes
2answers
116 views

My VPS has been shut down now again for the second time for TOS violations, and I really need some help. [closed]

My VPS has been shut down now again for the second time for TOS violations (email spam), and I really need some help. I have been battling with my server being attacked for over a year now. Most of my ...