Related to email protocols, clients, servers, content, and message format.

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2
votes
1answer
54 views

Are there any examples of when personal email data can be brought into a lawsuit involving a corporation?

If users bring their own device (BYOD) and they have corporate Exchange (or Goodlink email) on that device, could the other email accounts on that device be open to a legal search? Would the SMS ...
0
votes
0answers
121 views

How can secure email be used while avoiding government attention?

Presumably all unencrypted email is available to federal agencies including IP addresses, header information, and email content (eg, through SMTP with or without SSL and TLS -- thunderbird has an SSL/...
1
vote
3answers
3k views

Tracing an email's MAC address

Can someone trace the MAC address of an email to the point of origin if the email address has been deleted? I received an email from an unknown sender regarding an issue at my work, and when I tried ...
-7
votes
1answer
205 views

Is Google intercepting my emails? [closed]

I was recently checking my Recent Activity under the "Details" tab inside my Gmail inbox, and I noticed this IP Address, it's not my IP: I proceeded to look up the IP and it's located in Mountain ...
4
votes
1answer
115 views

How accurate the recent activities location provided by Microsoft emails

One of my emails is on hotmail.com provided by Microsoft. Recently, after few suspicious incidents where my computer was hacked and many other accounts, I changed all my passwords including this email....
0
votes
3answers
183 views

What stopping someone from offering distributed and encrypted email? Just like Bitcoins

Basically Email service that is ran over a network, so it's not owned by any one entity. Everyone can use it and send email to someone else. All messages travel through a web of interconnected users....
-1
votes
1answer
82 views

indicators of compromise via email servers

Malicious files are commonly infiltrated on to the network via email attachments. Besides awareness and education to my staff to refrain from clicking on suspicious attachments, I would also like to ...
8
votes
2answers
6k views

How to prove my Gmail has been hacked?

I believed that someone had hacked my Gmail because they were using information contained within my emails in an attempt to try to convince me that they were psychic. I told them that I didn't believe ...
0
votes
1answer
42 views

Under what circumstance might your email not make to your intended recipient? [closed]

I'm asking because it's one thing to eavesdrop on someone's email, but it's another thing to prevent your email from getting to your recipient. For example, I sent an email to a colleague and he and I ...
5
votes
1answer
268 views

Is my ISP trying to impersonate google?

Everything has been well for years and today I wake up with this: A warning on EM Client (also got the same on my iPhone) that the certificate for googleapis.com isn't valid. And the certificate ...
3
votes
3answers
150 views

Email injection in simple terms?

Can someone explain why spammers use email injection? I am a victim and was wondering if there was any other malicious point besides annoying me and filling up my e-mail?
1
vote
0answers
153 views

Why is my website getting spammed?

Does anyone recognize this type of spam? NAME: Bagas EMAIL: dq95zxm7l@gmail.com PHONE: JCBUIR6ulwtO COMMENTS: I must express apaotcipeirn to the writer for bailing me out of this particular ...
3
votes
1answer
190 views

How was my email intercepted? [closed]

I've recently sent an email to a non-Protonmail user, using a code phrase. Someone on the recipient's home network was able to intercept the email and responded to me in detail as to the content of my ...
53
votes
6answers
9k views

Why do security experts like Snowden use email services like Lavabit and Hushmail rather than self-hosted email?

Why would anyone like Edward Snowden rely on 3rd party services like Lavabit or Hushmail to host his email? I mean it's very easy to set up a self-hosted email server. What you need: Rent VPS (even ...
4
votes
2answers
282 views

Reset links in password expiration emails

Our organization is rolling out yearly password expiration to our 40,000+ users this fall and we have been socializing this change for some time now. However being such a large organization, our users ...
3
votes
1answer
193 views

How safe is it to use shared SPF record domains?

I'm wondering the following, what if shared SPF records like below are used? v=spf1 include:_spf.google.com ~all v=spf1 include:spf.mandrillapp.com ~all v=spf1 include:servers.mcsv.net ~all Can it ...
-6
votes
2answers
96 views

Is it possible that the person I write to will see the email before I write to him?

Is it possible that the person I write to will see the email's content before I reply to him? If I got an email and I answering that email, is there any feature that can cause my reply to be seen by ...
4
votes
2answers
867 views

DMZ and mail servers

I've seen a few DMZ related questions here in the past, but wanted to ask one directly related to email. I've done some research on this, but wanted to ask the forums opinion. I know it's best ...
72
votes
8answers
8k views

Unsubscribe safely

I have heard that is better to never click to any link in an email. Is it a bad idea to click to a unsubscribe link? What is the best way to unsubscribe to undesired mails?
1
vote
4answers
462 views

is it easier to eavesdrop on ethernet connection rather than wifi?

I heard someone say that ethernet connection is vulerable if someone can connect to your LAN, and that the traffic isn't encrypted in the way it might be if you're using WPA wifi encryption. Is this ...
2
votes
3answers
256 views

Email confirmation techniques in major sites

The way I understood traditionally for email confirmations to work is the user registers to the site with their email and then to login they must verify their email. If they have not verified ...
-3
votes
2answers
98 views

What IP address is a new email account associated with? [closed]

If records are subpoenaed from google will they reveal internal IP or external IP addresses of a email account? For example if an email address is made and an email is sent using and iPad and home ...
5
votes
2answers
2k views

Potential employer wants me to email my SSN with an application form, is this a major security risk?

I'm job hunting at the moment and I've come across several potential employers that have PDF's that you would download, fill in, and then email to them. I feel EXTREMELY uncomfortable sending my ...
2
votes
4answers
383 views

What are some ways to spot email spoof attacks?

I use Gmail and I started getting malicious-sounding emails from people I know intimately. The people I spoke to said they did not send those emails. In order for the attacker to carry this off, are ...
4
votes
1answer
887 views

How to determine if mail was encrypted during transport using the header information?

First things first: I know about the difference between end-to-end-encryption and transport encryption. Back to topic: I already read some things about how mail server handle transport encryption, e....
2
votes
1answer
293 views

How to send an encrypted mail only knowing the PGP fingerprint?

How does one send an encrypted email with PGP, when he only has the recipient's fingerprint? I am already sending emails using PGP, but I've just pulled a contact's PGP fingerprint who I need to ...
0
votes
2answers
630 views

Authenticating Hotmail's certificate and connection security

I've recently received the following error message from hotmail.com (or live.com) after I have logged in using Chrome browser, consistent using different accounts and computers (regardless of 2FA or ...
0
votes
2answers
63 views

Is there a way to attack STARTTLS + certificate pinning probed from multiple places?

I just had this discussion on IRC and I have to admit I did not understand why other users were not convinced this would be enough... Let's say I would like to protect e-mails sent out from my ...
1
vote
2answers
443 views

Is there a online filter to check email attachments?

I've just received an email from an old employer. There is very little information in the message sent just: See attached file for your review. Kind regards, Mick with an attachment. I ...
-2
votes
2answers
93 views

Are these statements correct [closed]

Are the following three statements more or less correct: -To send someone an encrypted email basically entails having access to their public key (either smime or pgp). Thus for all practical ...
2
votes
2answers
437 views

Hijacked Aol Email Account - Lack of security?

First, I'm very sorry if this is not the place I should ask this, but it seems to be the best choice. My Aol email account was hijacked during the night two days ago : the password has been changed (...
3
votes
3answers
265 views

Any Security Risks for using mailto:?

I use a PHP script which performs a database search and when no result are found, user is presented with a mailto link with this format mailto:example@test.com?subject=SEARCHED_QUERY_HERE The ...
0
votes
2answers
198 views

Is this a case of simple email spoofing or has my email account been compromised?

I just arrived home and when got to my computer I checked my mail box and it was with a message coming from my own email address that was sent almost at the same time I got home. I promptly ...
2
votes
1answer
108 views

mis-use of email address to obtain services from Groupon [closed]

I recently bought a new domain name "familyname.net" and I redirect emails to this domain to my normal email address. Recently I received various emails, one of which came from Groupon to confirm the ...
3
votes
4answers
1k views

How to detect self destructing emails? How to prevent from self destruction?

Recently I came across a gmail extension for Chrome browsers which claims to send self destructive emails. I tested by sending self destructive emails to my email account and it works fine Now my ...
0
votes
4answers
151 views

What mail applications use crypto?

I just read that everyone in the world can ready my mails (if intercepted in traffic by eavesdropping?). Also, it reads that current versions (book's from 2004 so I assume that new versions adopt ...
0
votes
4answers
603 views

Is end to end email encryption possible without unique domain/subdomain for each user?

Lets say Alice@gmail.com wants to send message to Bob@secureMail.com Alice <--> gmail.com <--> secureMail.com <--> Bob We know gmail.com can read the unencrypted message. Is it possible for ...
4
votes
2answers
187 views

Is using a self signed certificate safer than a free ssl certificate? [duplicate]

I have a personal website/email server, basically for my own self learning use. I am using CACert (http://www.cacert.org/) for my SSL certificate as advised in a tutorial. I have no clue about ...
2
votes
4answers
368 views

How can I stop an IP from trying to use my mail server?

I have recently set up my first email server, and I look at the logs in /var/logs/mail.log to see what is happening, I notice this one IP does this multiple times every day for the last so many weeks :...
3
votes
1answer
379 views

Exploiting mailto links

Supposing that the user has the power to include any content after mailto: snippet, are there any possible security vulnerabilities? Example: The user says their email address is foo. The link on ...
6
votes
3answers
774 views

Is there any security reason that mail services like gmail or yahoomail limit the size of file attachment?

Despite the fact that Email standards such as MIME don't specify any file size limits, but in practice email users will find that they can't send very large files(more than 20 or 25 MB). Some experts ...
1
vote
1answer
191 views

What is the best setup to keep my email private from both attackers and government agencies?

I am attempting to setup a secure and private email account for my company. we currently use gmail which actually requests the emails from a hosting service provider that is configured with our ...
1
vote
2answers
69 views

Use DANE to authentify mail sender

I have my own virtual DNS infrastructure, from the root to the mail server mail.example.com. Everything is signed using DNSSEC. client1@example.com can send email to client2@example.com, digitally ...
0
votes
1answer
87 views

Is secure tokens send by email secure? [duplicate]

I'm struggling with the reset password function of a web app, the way i'm inclined to do it is by sending a token based url to the email of the user and than the user can access and reset its password,...
0
votes
1answer
137 views

Opening mail without any risk [closed]

Before opening unknown email (not in spam folder) how we can identify no any danger inside the mail (with availability of active virus guard)
8
votes
3answers
591 views

Does OpenPGP encryption mean that not even I can see my data?

Say I have an email and I want to send it to someone else. I encrypt it with his public key. This ensures that only he can read my message. Does this also means that I won't be able to read it? If so, ...
1
vote
1answer
114 views

How is the username and password captured on this mobile device?

I have a Motorola phone, and I am concerned about my privacy after reading this article : http://www.beneaththewaves.net/Projects/Motorola_Is_Listening.html The poster says: For both of these ...
2
votes
1answer
156 views

Android email encryption [closed]

Is there a reliable (in terms of security), open-source application for handling (send/receive + en-/decrypt) encrypted emails on Android? Something like TextSecure for emails. I just found a command ...
0
votes
2answers
635 views

How can I stop an account I don't control from sending spam email in my name to my contacts?

Recently I received an email from a friend with "My" email to them attached. The email "I" sent them was obviously spam, one of those "You have to see this..." emails. The email had been sent to ...
2
votes
1answer
217 views

How does this encrypted webmails works?

In the last days I was looking on Tutanota, ProtonMail, LavaBoom, and others webmails that promise to respect users privacy. For all those, the one I most liked was Tutanota. I did few tests with ...