1. TEACH YOUR FILTER
When you find spam in your inbox, do not just delete it. Select it, and mark it as SPAM. Which sometimes is called JUNK EMAIL.
How you do this depends on your client. For instance, if you’re using Gmail’s website, click the Report spam button in the toolbar (the icon looks like an exclamation point inside a stop sign).
You also need to train the client about your false positives. Once a day, go through your spam folder looking for messages that don’t belong there. When you find one, select it and tell the client that it made a mistake. In Gmail, you click the Not spam button.
Add any trusted emails into your WHITELIST – again this depends on your email software.
Look at the email provider’s HELP or SUPPORT.
If your mail client is halfway decent, it will learn from these mistakes…but only if you train it.
2. DO NOT OPEN SPAM EMAIL.
(Even to “unsubscribe”!!)
If you notice an email as spam before you open it, do not open it. If you open it and then realise it’s spam, close it. Do not click a link or a button, or download a file, from a message that you even remotely suspect is spam….. again – even if you think you should “unsubscribe” or similar – the spammer swill know your website is good and add you to more lists.
If you opened a spam because it appeared to be coming from a friend or co-worker, contact them immediately and let them know that their account has been compromised.
This often happens when somebody’s email account has been hacked and their account is being used to send out spam email.
3. HIDE YOUR EMAIL ADDRESS
The more people who have your email address, the more spam you’re going to get. So keep your address close to your chest.
Don’t publish it on the web unless you absolutely have to. (I have to, and it’s not fun.) And if you have to, use a different address for that purpose.
Use disposable email addresses when you’re not comfortable sharing your real one.
4. USE A THIRD-PARTY ANTI-SPAM FILTER
Most of the major security suites come with an anti-spam filter that can augment the one on your client—but only if that client is local. In other words, they can work with Office’s Outlook program, but not with Outlook.com.
5. CHANGE YOUR EMAIL ADDRESS
This is a very drastic option, but if you’ve responded to spam in the past or haven’t hidden your address, and are therefore overloaded with spam, it may be your best option.
Of course you’ll have to inform your legitimate contacts about the change, and you’ll probably have to keep both addresses for a few months. But once you can get rid of the old address, your spam count should plummet.