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HOW TO STOP SPAM EMAILS

Spam emails are more than just annoying; they can also be dangerous.

LEARNING CENTER

 * What is email security?
 * What is email?
 * Secure email gateway (SEG)
 * Blocking malicious emails
 * Glossary
 * Insights

LEARNING OBJECTIVES

After reading this article you will be able to:

 * Learn how to reduce the number of spam emails people receive
 * Understand why spam emails are dangerous
 * Get tips on spotting spam emails

Related Content

--------------------------------------------------------------------------------

What is email security?

What is email?

Email spoofing

How to identify a phishing email

What is SMTP?

Copy article link


WHAT IS SPAM EMAIL?

Spam or junk emails are unsolicited emails, typically sent in bulk. While some
spam emails are promotional and not overtly malicious, they can also be used in
a variety of attacks. For this reason, inbox owners should exercise caution when
opening emails and take steps to reduce the amount of spam they receive.


ARE SPAM EMAILS SAFE?

Spam emails should generally be considered dangerous and approached with
caution. This is because spam emails are used to execute different types of
attacks:

 * Phishing attacks, which the FBI named the most common type of cyber crime in
   2020, often employ email. In these attacks, recipients are tricked into
   sharing personal information like login details, often with the use of a
   spoofed email. (A spoofed email is one that an attacker has tampered with to
   make the “from” address appear legitimate.)
 * Spreading malware is relatively easy to do with email. Attackers can embed it
   within images, links, or attachments. Recipients who suspect an email is spam
   should not click or download anything within it.
 * Advance-fee scams, in which attackers promise a future payment in exchange
   for loaning them money, are also a very common spam technique. How to stop
   spam emails

   Spam emails are very common, with 45.1% of 2021 email traffic being
   attributed to spam. But the following tips can reduce the amount of spam that
   makes it to a recipient’s inbox:

    * Marking emails as spam: While email providers offer some level of spam
      filtering by default, these filters are not foolproof. The more details
      recipients give their email providers, the more accurate their blocking
      will be. So be sure to mark any suspicious emails as spam.
    * Using and updating filters: On top of the built-in spam filtering
      features, many email providers include an option to set rules about what
      emails to block. This may include restricting emails from certain domains
      or those containing certain phrases.
    * Layering on a third-party filter: If built-in features are insufficient,
      users can also add an external anti-spam tool. These tools may have
      different filtering rules from the email provider, improving overall
      protection.
    * Being judicious about sharing email addresses: Unfortunately, some
      organizations will sell user data to other companies. On the flipside, a
      data breach can also expose user information. The fewer places people
      share their email, the less likely this is to happen. Because many sites
      and applications require an email address, some people opt to use
      temporary or disposable email addresses. Website owners can also play a
      role in reducing the frequency of spam emails by not publishing complete
      email addresses on their sites. This is because attackers will harvest
      websites for email addresses to spam.
    * Unsubscribing from email lists: A high unsubscribe rate can hurt an
      organization’s deliverability over time. Thus, unsubscribing will reduce
      the amount of mail hitting a recipient’s inbox and can help signal when an
      organization is sending spam.
    * Never opening spam emails: Opening an email alerts the spammer that the
      inbox is actively monitored by someone, making that email address a more
      valuable target. Users should refrain from opening suspicious emails or
      those marked as spam altogether.


   HOW TO SPOT SPAM EMAILS

   While some spammers are particularly adept at masking their emails, there are
   a few giveaways that can help recipients identify spam emails:

 * Asking for personal information: Attackers constantly try to get information
   they can use out of their victims. Unless this is a request the recipient is
   expecting to receive, a message seeking personal information could be a sign
   of spam.
 * Generic or misspelled email addresses: Sometimes spammers will claim to be
   someone from a recipient’s workplace but send the email from an address that
   is not part of the corporate domain. Or they may trick recipients by using a
   domain with a slight misspelling, like “Cloudfiare.com” instead of
   “Cloudflare.com.”
 * Messages labeled ‘urgent’: Attackers will often try to establish a sense of
   urgency to encourage the recipient to act quickly by incorporating phrases
   like “act now” or using artificial deadlines. This way, they can get the
   information they need before the recipient becomes suspicious.
 * Grandiose promises: If an email is promising something that feels too good to
   be true, it probably is. Be wary of any emails telling recipients they have
   won or are being gifted something they did not explicitly sign up for.
 * Messages from organizations that do not generally use email: Be suspicious of
   messages that appear to come from institutions that do not traditionally use
   email. For example, the IRS has stated that they do not use email to discuss
   debts or refunds with taxpayers.


WHAT IS THE CAN-SPAM ACT?

The CAN-SPAM Act is a law in the US that sets rules about what commercial
organizations are allowed to send in their communications, including emails. It
specifically applies to messages that are promotional in nature.

One of the most important rules in the law is that recipients have the right to
be removed from mailing lists. If organizations violate the CAN-SPAM Act — for
instance, by continuing to send emails after someone unsubscribes — individuals
can report them directly to the Federal Trade Commission (FTC).


CAN SPAM EMAILS BE STOPPED PERMANENTLY?

Unfortunately, there is no way to guarantee an end to spam emails. However,
following some of the above steps should help reduce the number of spam emails
people receive. Practicing good inbox hygiene, by marking emails as spam or
using filters, can improve an email client’s ability to block spam in the long
run.


HOW DOES CLOUDFLARE HELP WITH EMAIL SECURITY?

Cloudflare Area 1 Email Security preemptively crawls the Internet to find
attacker infrastructure and analyzes the content and context of emails to
identify suspicious messages. This means stopping phishing attacks and other
forms of spam before it reaches inboxes.

Sales

 * Enterprise Sales
 * Become a Partner
 * Contact Sales:
 * +44 20 3514 6970

Email security basics

 * What is email security?
 * What is email?
 * Business email compromise (BEC)
 * Secure email gateway (SEG)

Phishing and spam

 * How to stop spam emails
 * How to identify a phishing email
 * Email attachment security
 * DMARC, DKIM, SPF

Email protocols

 * What is SMTP?
 * What is IMAP?
 * What is email encryption?
 * SMTP port

Glossary

 * Email spoofing
 * What is vishing?

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