Questions tagged [spam-prevention]

Generally refers to techniques that aid in avoiding receiving any email or message that is either unwanted or unsolicited.

Filter by
Sorted by
Tagged with
1 vote
1 answer
84 views

Remove new type of ad on Windows 10 search bar after Windows update

After a recent windows update this ad is now showing up on the search bar It a small button on the right of the search bar, and if you hover (or click) over it it shows a panel as shown How do I get ...
user avatar
  • 1,225
-1 votes
0 answers
19 views

Need a mail service to receive ALL mails [closed]

Sometimes I need to receive essential emails but google marked them as phishing or spam or they disappear! I should ask to resend them to a temporary mail every time which I can see all the mails ...
user avatar
0 votes
0 answers
19 views

Keep receiving phishing emails after reporting

In my organisation we use Office 365 for email. When users receive phishing emails, we ask them to report them using the Report Spam/Phishing options in Outlook. However this doesn't seem to do ...
user avatar
  • 542
0 votes
0 answers
44 views

rkhunter Apache2 Warning caused by phpmyadmin-Docker-Container

recently we get the following reports from rkhunter: Warning: The following processes are using suspicious files: Command: apache2 UID: 33 PID: 11286 Pathname: Possible ...
user avatar
0 votes
1 answer
24 views

How to extract email addresses from an E-Mail folder on the server

I am now in the situation where I need to complete my Rspamd Blocklist with the domains that are spamming me. As I cannot do this direct from my inbox, I have now the following setup: I mark all ...
user avatar
  • 113
0 votes
2 answers
51 views

How block mails with certain content before moved to spam in outlook

I am getting spam mails with always the same content (and the same subject). They are sent each time from a different address. Outlook always automatically puts them in the Spam folder. However, I ...
user avatar
  • 101
2 votes
1 answer
28 views

Is there a way to configure Thunderbird with malicious IP DB to flag incoming mails as spam?

I checked a spam mail source and noticed it could come from a malicious server. I saw there are some malicious IP DB like AbuseIPDB collecting such IPs. Is there a way to let Thunderbird check the IPs ...
user avatar
  • 233
0 votes
1 answer
35 views

Will an unknown or missing DKIM, SPF, or DMARC parameter always cause an email to be marked as spam?

I recently found that an email provider I use is unable to send email to some popular systems like aol.com, verizon.net, (and perhaps others) without being marked as Spam. I became suspicious after ...
user avatar
  • 103
1 vote
1 answer
28 views

Clear Thunderbird junk folder or leave the messages in?

Do the mails in the Thunderbird Junk folder serve any purpose, e.g. training data for the adaptive filters? Or can I throw them away? Related but not containing my answer: How does Thunderbird "...
user avatar
  • 3,918
0 votes
1 answer
39 views

unauthorized access to dovecot services

Recently i was enable mail-relay to 3rd party tool, suddenly i found 1000 of emails are going as a spam everyday to unknown users i disable the mail-relay ,but still we facing some one login our ...
user avatar
1 vote
2 answers
34 views

Manually move marked junk mails to junk folder

Is there a way to manually move junk mails to junk folder in Thunderbird? I have multiple email accounts configured in Thunderbird with enabled adaptive junk mail controls for each account, enabled &...
user avatar
  • 123
0 votes
1 answer
289 views

Office 365: daily quarantine reports

I am looking to activate a daily quarantine report for all users under Office365 but can't seem to find the option in the new layout. It is no longer available under the "classic exchange admin ...
user avatar
  • 101
0 votes
0 answers
32 views

SpamAssasin TLD blocking

I have configured spamassasin in my hosting to block some spammer TLDs. The blacklist email is just as this: @.asia @.bar @.best @.bid @.buzz @.cam @.casa @.cloud @.club @.cyou @.diet @.digital @.fun @...
user avatar
0 votes
2 answers
38 views

spam email sent from my exchange account but not in my sent items

we have an issue where we are receiving emails from contacts that they have received emails from our users that contain dangerous links in the email. The email being sent is from a previous email ...
user avatar
-1 votes
1 answer
22 views

How to eliminate public listing of my email address? [closed]

I get way too much junk mail that I am not thinking of ditching my email address. I am think it is in part because my email is publicly listed somewhere? Can I search my email listing on google etc so ...
user avatar
  • 1,571
0 votes
1 answer
62 views

I have received a E-mail and the ‘To:’ address is not mine

I have just opened my Mail app on my phone and have noticed a strange email at the top of my mailbox. I am from the UK and the sender of the strange e-mail was from a .de Address. I have no reason to ...
user avatar
0 votes
0 answers
95 views

Laptop keeps spamming s key randomly

5 days ago, all of sudden my laptop kept spamming s randomly eventhough I havent pressed it. It stopped yesterday and would only last until i unplugged my keyboard. So, today I got a new one and my ...
user avatar
0 votes
0 answers
37 views

How to send dkim/spf compliant email from Debian 11?

I don't need to create a full blown email implementation. I don't need to receive emails from anybody. I just want to be able to to send emails from no-reply@example.com for password resets, email ...
user avatar
0 votes
0 answers
32 views

Outlook.live.com - does opening a junk email trigger Open message tracking?

Generally, when mail providers place a suspected spam email in the Junk folder, and then a user opens that email, the content is blocked from loading so as to avoid triggering an Open email event in ...
user avatar
0 votes
1 answer
55 views

When I mark an e-mail as "Not junk" in MS Outlook, does this in any way get communicated to Gmail?

I use Gmail's servers, and Outlook (Windows) as my mail client. I occasionally get false positives identified as SPAM, requiring me to check my Spam folder regularly. When I see a legitimate e-mail in ...
user avatar
0 votes
0 answers
75 views

307: hackers temporary redirect for javascript files

I have an http website, hosted by the service provider. My web pages load javascript files from the web server. Well, really standard scenario, but... When I am at home, and load web page from my web ...
user avatar
  • 151
1 vote
1 answer
118 views

Risks of custom domain for personal email address?

I am not speaking of hosting the web server myself, I would delegate that to a well established company, for example the registrar I use for the domain name. I want to know what the risks would be to ...
user avatar
1 vote
0 answers
184 views

header_checks is applied to mail body (CentOS 7 + Postfix 2.10.1)

I have received SPAM e-mail, added regular expression to header_checks about it and when tried to forward SPAM e-mail as attachment, then this check triggered and rejected my forwarded e-mail. Regexp ...
user avatar
  • 258
0 votes
1 answer
28 views

When allowing a sender or sender domain in outlook does that apply to the "via" as well?

The company I work for sends emails for an internal email, but it is sent through a third party service and is authenticated with our domain. Surprisingly, one of our emails ended up in my junk folder,...
user avatar
1 vote
2 answers
91 views

detect spam from random domain names in header, in .procmailrc

Spam from a well-known organization that sells large lots of knockoffs of everything from drones to roombas uses random domains in the From:, Message-ID:, and Reply-To: fields, all different, without ...
user avatar
2 votes
0 answers
263 views

My e-mail is being used to send spam, what can I do?

I am renting my own domain from a German hoster, and have created 4 e-mail accounts on it. All was well for 5+ years. For about a week now, one of those accounts receives around 5 e-mails per day from ...
user avatar
1 vote
1 answer
803 views

Outlook live spam filter system

I am trying to migrate my personal email from gmail to outlook (the webmail). So far, easy steps, but I've noticed that the spam filter is very aggressive (or I don't understand it). Even sending ...
user avatar
0 votes
1 answer
119 views

Recieving spam mail that is addressed to someone else

I keep getting replied spam emails which are being sent to other users. I checked the header and bcc fields, I am nowhere in those. This is the scenario: FROM: spam@spam.net TO: john@doe.net Thing is,...
user avatar
0 votes
2 answers
26 views

How did Google search enter as top item in my Firefox address bar?

Since recently, Firefox (now on 78.4.1esr on Debian stable) is showing me a top-option to enter Google when typing things in the address bar. Needless to say, Google is not my default search engine, ...
user avatar
0 votes
1 answer
24 views

Foxit Reader - How to get rid of the feature advertisement box, which interferes with scrolling?

Just above the scroll bar, there is a rectangular area that I am constantly accidentally hitting, which expands when you place your mouse over it, blocking you from being able to press the top arrow ...
user avatar
  • 1
0 votes
0 answers
378 views

Stop all emails that contain multiple dots after the @ sign

I look through my junk folder in Outlook, Yahoo, and Gmail, I saw a lot of spam emails. I bet most of you guys probably face these issues too. Ex. wlda44246@mdf9j5dv91qkqi.w352f-a925.kevffsrw.ml ...
user avatar
  • 396
1 vote
1 answer
122 views

How is it that Email Marketing Platforms like mailchimp are able send emails from me without me giving them my email password?

Mail Chimp, SendinBlue, and etc are email marketing platforms that can do email blasting. I noticed that they are able to send an email and mark it as 'From' my email. Its very weird to me as i never ...
user avatar
0 votes
2 answers
125 views

Is it practical to run a private SMTP server on a static IP in 2020/2021?

I have a small piece of static IP4 space (5 IPs, /29) and general Linux sysadmin capabilities. I have run SMTP servers before, but I don't know what the current state-of-the-art for email and spam-...
user avatar
  • 169
0 votes
2 answers
543 views

POP3 on Gmail doesn't retrieve spam email from outlook

I have pop3 on Gmail but it retrieves emails from outlook only from inbox folder but not from the spam folder. Is there a way pop3 to sent the spam emails (which some of them are not spam) to my Gmail?...
user avatar
  • 1
0 votes
2 answers
74 views

"This email is from an external mail server etc." <- can I get rid of this?

On many (but not all) of my incoming email messages, I see a message saying: This email is from an external mail server, be judicious when opening attachments or link My mail server is - ...
user avatar
  • 7,312
0 votes
2 answers
96 views

How to automatically recognize & move spam emails

There are lots of spam emails in my inbox, but there are also several normal emails and other useful emails among them. Is there any way to automatically recognize spam emails and move them to another ...
user avatar
1 vote
1 answer
37 views

Do spammers actually make subject lines such as "[SPAM]"? Or is this added by some filter?

I have a Gmail account. Today, I had received a spam message whose subject line was actually "[SPAM]". Is this some new kind of "trick" by spammers, or was the subject line determined to be 100% sure ...
user avatar
  • 11
0 votes
1 answer
49 views

antispam PTR checks against what domain

PTR checks the domain IP address to validate sender address. But against what? the SMTP HELO hostname? Or against email domain? for example if I send an email from john@domain1.com from a SMTP server ...
user avatar
  • 595
1 vote
1 answer
3k views

Hotmail connected to Outlook - all messages are marked as spam but only from Outlook

I have an issue where by a colleague has a hotmail.com account, which has been upgraded to a premium one recently. This is connected to Outlook 365, alongside his corporate Office 365 email account. ...
user avatar
1 vote
0 answers
32 views

Outlook strips out safe senders

I am a software engineer and wrote a Web API that has system generated mail messages that get sent when a user "requests more info" on the website. This generates 2 messages, one on the requester ...
user avatar
1 vote
1 answer
168 views

My business email suddenly goes into spam with majority of people I email for the first time

The email address I use for business correspondence goes to the spam folder (Gmail, Hotmail, Yahoo) for the majority of people that I email for the first time. To be clear, I am not involved in any ...
user avatar
  • 1,469
0 votes
1 answer
78 views

What would be a safe way to block these SPAM e-mails? [closed]

In the last month, I've been getting numerous e-mails which all follow a clear pattern (well, it's clear to a human eye, at least). They are sent from e-mail addresses such as: amzn.2.gmsu.70155@...
user avatar
1 vote
1 answer
253 views

How does the use of port 587 stop spammers?

I see that that ISPs are starting to push users to use SMTP port 587 instead of old port 25. Spam usually appears in the ISP's reason for this need. My question is "how is this going to stem the spam ...
user avatar
0 votes
1 answer
750 views

Spam Email from me to me

I have just received an email with the from address being the same as my own email address but Google has correctly classified it as spam and it went straight to my Spam folder. The content of the ...
user avatar
0 votes
2 answers
127 views

what's the difference between using RBLs and anti-spam software?

My doubt is, is it too different to use RBLs instead of anti-spam programs? (like SpamAssassin) I've a Postfix + Dovecot server with some RBLs in Postfix, and disabled SpamAssassin because it was ...
user avatar
  • 157
3 votes
1 answer
30 views

How to filter an email type to prevent it from occupying even the spam folder? [closed]

I receive daily messages in my Gmail with the same subject: "Sales Boom". Gmail correctly detects these messages as spam and sends them correctly to the spam folder. Even so, I would like to know if ...
user avatar
1 vote
0 answers
49 views

Postfix is forwarding/relaying spam

I have an Ubuntu 16.04 machine with Postfix 3.1.0 and virtual mailboxes (iredmail). I'm using postscreen (with a local Bind server), Amavis with ClamAV and SpamAssassin. The amount of received spam ...
user avatar
3 votes
1 answer
7k views

Outlook POP3 cannot receive Junk mail folder, how to work around this?

I have identified a misconfiguration in the way e-mail is set up at my workplace. We use POP3, and the accounts at our e-mail provider are set to move spam to a Junk mail folder. I have just learned ...
user avatar
0 votes
2 answers
83 views

Can certificate issues cause your IP to get blacklisted by spamfilters?

I have been googling on this topic for over a solid hour now and can't seem to find an answer. At my work, all employees get the following (good old) warning whilst firing up their Outlook clients: ...
user avatar
  • 25
5 votes
1 answer
4k views

How to leave a Google Shared Drive that I'm not editor

Today I opened my Google Drive and a Shared Drive with the name ### Get a $1,000 Per Month appeared. This drive has only one file in it, a Google Slides presentation named Get a $1,000 Per Month. ...
user avatar
  • 161

1
2 3 4 5
8