Writing the subject lines for your emails can be one of the most stressful steps of email marketing. Is it engaging? Too short? Too long? Too boring? Will people click ‘delete’ because of it? Or will they open it? Will it even get to them, or will it trigger SPAM filters? It’s the last of these concerns that we’re here to help with today.

SPAM filters can be triggered for a variety of reasons, causing your email to skip recipients’ inboxes and land straight in their SPAM box. One of easiest ways to avoid SPAM filters is by carefully choosing the words you use in your email’s subject line. Trigger words are known to cause problems and increase the chances of your email getting caught in a SPAM trap. By avoiding these words in your email subject lines, you can dramatically increase your chances of getting beyond SPAM filters.

Next time you sit down to write an email subject line, consult the exhaustive list below and make sure you aren’t using any words that will get you in trouble. In fact, you might want to bookmark this list so you can refer back to it every time you craft an email subject line. Back off, SPAM filters!

Commerce

As seen on Buy Buy direct
Buying judgments Clearance Order
Order status Orders shipped by shopper

Personal

Dig up dirt on friends Meet singles Score with babes

Employment

Additional Income Be your own boss Compete for your business
Double your Earn $ Earn extra cash
Earn per week Expect to earn Extra income
Home based Home employment Homebased business
Income from home Make $ Make money
Money making Online biz opportunity Online degree
Opportunity Potential earnings University diplomas
While you sleep Work at home Work from home

Financial – General

$$$ Affordable Bargain
Beneficiary Best price Big bucks
Cash Cash bonus Cashcashcash
Cents on the dollar Cheap Check
Claims Collect Compare rates
Cost Credit Credit bureaus
Discount Earn Easy terms
F r e e Fast cash For just $XXX
Hidden assets hidden charges Income
Incredible deal Insurance Investment
Loans Lowest price Million dollars
Money Money back Mortgage
Mortgage rates No cost No fees
One hundred percent free Only $ Pennies a day
Price Profits Pure profit
Quote Refinance Save $
Save big money Save up to Serious cash
Subject to credit They keep your money — no refund! Unsecured credit
Unsecured debt US dollars Why pay more?

Financial – Business

Accept Credit Cards Cards accepted Check or money order
Credit card offers Explode your business Full refund
Investment decision No credit check No hidden Costs
No investment Requires initial investment Sent in compliance
Stock alert Stock disclaimer statement Stock pick

Financial – Personal

Avoid bankruptcy Calling creditors Collect child support
Consolidate debt and credit Consolidate your debt Eliminate bad credit
Eliminate debt Financially independent Get out of debt
Get paid Lower interest rate Lower monthly payment
Lower your mortgage rate Lowest insurance rates Pre-approved
Refinance home Social security number Your income

General

Acceptance Accordingly Avoid
Chance Dormant Freedom
Here Hidden Home
Leave Lifetime Lose
Maintained Medium Miracle
Never Passwords Problem
Remove Reverses Sample
Satisfaction Solution Stop
Success Teen Wife

Greetings

Dear [email/friend/somebody] Friend Hello

Marketing

Ad Auto email removal Bulk email
Click Click below Click here
Click to remove Direct email Direct marketing
Email harvest Email marketing Form
Increase sales Increase traffic Increase your sales
Internet market Internet marketing Marketing
Marketing solutions Mass email Member
Month trial offer More Internet Traffic Multi level marketing
Notspam One time mailing Online marketing
Open Opt in Performance
Removal instructions Sale Sales
Search engine listings Search engines Subscribe
The following form This isn’t junk This isn’t spam
Undisclosed recipient Unsubscribe Visit our website
We hate spam Web traffic Will not believe your eyes

Medical

Cures baldness Diagnostics Fast Viagra delivery
Human growth hormone Life Insurance Lose weight
Lose weight spam Medicine No medical exams
Online pharmacy Removes wrinkles Reverses aging
Stop snoring Valium Viagra
Vicodin Weight loss Xanax

Numbers

#1 100% free 100% Satisfied
4U 50% off Billion
Billion dollars Join millions Join millions of Americans
Million One hundred percent guaranteed Thousands

Offers

Being a member Billing address Call
Cannot be combined with any other offer Confidentially on all orders Deal
Financial freedom Gift certificate Giving away
Guarantee Have you been turned down? If only it were that easy
Important information regarding In accordance with laws Long distance phone offer
Mail in order form Message contains Name brand
Nigerian No age restrictions No catch
No claim forms No disappointment No experience
No gimmick No inventory No middleman
No obligation No purchase necessary No questions asked
No selling No strings attached No-obligation
Not intended Obligation Off shore
Offer Per day Per week
Priority mail Prize Prizes
Produced and sent out Reserves the right Shopping spree
Stuff on sale Terms and conditions The best rates
They’re just giving it away Trial unlimited
Unsolicited Vacation Vacation offers
Warranty We honor all Weekend getaway
What are you waiting for? Who really wins? Win
Winner Winning won
You are a winner! You have been selected You’re a Winner!

Calls-to-Action

Cancel at any time Compare Copy accurately
Get Give it away Print form signature
Print out and fax See for yourself Sign up free today

Free

Free Free access Free cell phone
Free consultation Free DVD Free gift
Free grant money Free hosting Free installation
Free Instant Free investment Free leads
Free membership Free money Free offer
Free preview Free priority mail Free quote
Free sample Free trial Free website

Descriptions/Adjectives

All natural All new Amazing
Certified Congratulations Drastically reduced
Fantastic deal For free Guaranteed
It’s effective Outstanding values Promise you
Real thing Risk free Satisfaction guaranteed

Sense of Urgency

Access Act Now! Apply now
Apply Online Call free Call now
Can’t live without Do it today Don’t delete
Don’t hesitate For instant access For Only
For you Get it now Get started now
Great offer Info you requested Information you requested
Instant limited time New customers only
Now Now only Offer expires
Once in lifetime One time Only
Order now Order today Please read
Special promotion Supplies are limited Take action now
Time limited Urgent While supplies last

Nouns

Addresses on CD Beverage Bonus
Brand new pager Cable converter Casino
Celebrity Copy DVDs Laser printer
Legal Luxury car New domain extensions
Phone Rolex Stainless steel