How to stop junk email from cluttering your inbox

After yet another inbox cleanup that was supposed to be the last one, you received a new spam email the next day. The influx of unwanted messages from suspicious senders, phishing, or other scam attempts costs us precious time and energy that we would rather invest elsewhere.

In this article, we will address two basic questions: how to stop receiving junk email and how to prevent non-spam emails from ending up in your Spam folder.

How to stop getting junk email

Before any email is allowed into your inbox, your email provider always applies a spam filter. The spam filtering systems are usually complex and are based on a combination of rule-based filtering, analyzing the email contents with software like SpamAssassin (Yes, most email providers can access the content of your emails for different purposes, including spam filtering), machine learning, spam scoring, feedback from users, and so on.

Therefore, you might not even know about many spam and scam attempts, because the server spam filters already recognize them as 100% spam, and you will not find them in your inbox or your Spam folder.

When the provider's server is reasonably (but not completely) sure the message is spam, it will allow the message in but immediately place it in the Junk or Spam folder. If you do not check the Junk folder and move the message to a different folder, such a message might be permanently deleted after a certain time, usually 30 days.

When all of the spam filtering fails, and you still find a spam email in your inbox, you can always flag it as spam and report it to the email provider - this will cause the server to recognize similar emails as spam from that point on.

You can also usually block the sender of unwanted emails, which will automatically sort any emails they send you into your Junk or Spam folder.

How to stop email from going to junk

Even advanced spam filtering technology can sometimes falsely recognize an email as spam.

In such cases, we could unknowingly miss important emails. It's a good practice to regularly check your Spam folder, just in case the spam filters fall short.

When you find a non-spam email in your Junk or Spam folder, you can usually flag it as "not spam", which will let the server know this email should not be placed in the Spam folder in the future.

Most email providers also include a whitelist or safe sender settings, where you can manually add email addresses and domains that should never be flagged as spam.

Email senders that are saved in your contacts are also usually not placed in the spam folder by default.

Blacklist and Whitelist features across email providers

Provider Blacklist/Whitelist options
Gmail On top of the default spam filtering, users can manually add more filters in the "Filters and Blocked Addresses" section.
The Whitelist feature is provided by the "Never send it to Spam" option or by adding an address to Contacts. Allowlists can be managed through the Admin Console.
Outlook "Incoming mail handling" settings can be either "Standard" - the default spam filter will move possible junk to the Junk folder, while the "Strict" setting will send to the Junk folder any email that is not sent by someone from your Contacts or the Safe sender/domains list.
The Safe senders and domains list is Outlook's version of the Whitelist.
Yahoo Mail You can block emails by marking them as spam or creating a filter. Whitelist functionality can also be achieved with filters.
Zoho Mail Zoho offers adding email addresses and domains to either the Allowlist or Blocklist.
Admin Console allows for more detailed settings - adding an address to the Trusted List will skip all spam checks.

You can mark as spam, quarantine, or reject via the Admin Console Blocked List feature.
Proton Mail Proton has built-in Spam, Allow, and Block lists in the Settings > Filters section.
iCloud Mail Block contacts by adding them to the Blocked Contacts in Contacts > Privacy & Security > Blocked Contacts.
There is no "allow list" available, but messages from your iCloud Contacts should not be marked as spam.
GMX Mail & Mail.com Block senders in the Settings > Blocklist section.
The whitelist feature is covered by either adding the email addresses to the Allowlist in Settings > Allowlist or to the Address Book, as emails from those senders do not go through the spam filter, if you enable this in the Spam Protection settings.
Fastmail Use the Block feature or create rules in Settings > Filters & Rules. Fastmail also supports spam filter overriding.
Tutanota (Tuta) The "Always spam" and "Not spam" rules work as a blacklist and whitelist. Further settings are available in the Spam rules section.

eM Client Blacklist and Whitelist feature for accessible spam filtering

As we mentioned, email providers handle the bulk of spam filtering. However, if you want to make sure no spam or unwanted emails appear in your inbox, you can take advantage of the local Blacklist feature in the eM Client desktop app.

All IceWarp and SmarterMail account users can manage their server-side blacklist in eM Client. And it’s possible for all users to locally blacklist email addresses and domains, so even when the provider's filter misses something, spam will always go to the Spam folder.

The Whitelist feature, on the other hand, will help you handle cases when an email was mistakenly flagged as spam.

To learn more about the eM Client Blacklist and Whitelist, check out this blog post.

Keeping the bad emails out and letting the good ones in has been an issue ever since the early internet times. While depending on your email provider's spam filters will take care of a lot of unwanted messages, the ones that still manage to slip through the cracks have to be dealt with somehow. That is where you might appreciate eM Client built-in spam management features - the eM Client desktop app will help you stay on top of unsolicited emails and maintain a tidy, uncluttered inbox.