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Paste a message to check itWe'll flag anything carriers are known to filter.

Carriers don't publish their exact filters. These checks come from Twilio's messaging policies and the patterns texting providers report most often. A clean result lowers your risk but can't guarantee delivery.

Why do text messages get marked as spam?

Usually because of a link, a word or a missing name, not because you're a spammer. Carriers scan every text sent from a business or organization number. Public shorteners like bit.ly, raffle or sweepstakes language, all caps and "act now" wording, and texts that don't say who they're from are the patterns most often reported to get blocked. Fix those, and most filtering goes away.

What carriers filter, and why

Every check in the tool, with the reason behind it.

Trigger	Why it gets filtered	Risk
bit.ly, TinyURL and other public shorteners	They hide where a link goes. Twilio says shared shorteners "will cause filtering."	High
Raffles, 50/50s, sweepstakes	Listed under gambling, a forbidden category on every number type	High
Loans, debt relief, crypto, CBD, vape, firearms	Forbidden or restricted categories for US texting	High
Gift cards, "verify your account," security alerts	They look like phishing	High
"Free," "winner," "act now," "limited time"	Promotional spam wording	Medium
ALL CAPS and !!!	Classic spam formatting	Medium
Alcohol (wine, open bar)	Needs age-gated opt-in on 10DLC	Medium
No sender name	Texts have to make sense out of context	Medium
Links to someone else's website	Links should match the domain you registered	Medium
Missing "Reply STOP"	People need a way to opt out	Low
Emoji	A spam signal in bulk, and it cuts each text to 70 characters	Low

Sources: Twilio forbidden message categories, Twilio messaging policy enforcement, Plivo US messaging best practices and LeadConnector's carrier filtering guide. Checked November 2026.

The raffle trap for shuls, churches and schools

The one that catches the most community organizations off guard.

Raffles count as gambling

Twilio lists 50/50 raffles and sweepstakes as gambling, which is forbidden on every type of number. That holds even for a fundraiser.

Text about the event instead

"Our Chanukah fundraiser is Sunday at 2pm. Details at bethisrael.org/chanukah" gets the word out. Put the raffle details on the page.

Bingo is the exception

Twilio allows community and local bingo messages. Other bingo promotions need an approved short code.

What to do if your texts are already being filtered

On Twilio, filtered texts show up as error 30007. Here's how to work through it.

Step	What to do
1. Fix the content	Run your last few texts through the checker. Remove shorteners and anything flagged red.
2. Match your registration	Make sure what you send matches your 10DLC campaign description and sample messages.
3. Check your list	Only text people who opted in, and honor every STOP right away.
4. Slow down big sends	Sudden spikes from one number look like spam. Ramp up volume gradually.
5. Ask for a review	If clean texts still fail, send your provider at least 3 filtered message IDs and ask for a filtering review.

Based on Twilio's error 30007 documentation.

Texting that stays out of the spam filter

Evant handles carrier registration for you, so your campaign is set up right from day one. Plans start at $20/month, with a free trial and no credit card required.

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Two-way texting from one number
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Built-in donation page
Voice broadcast for people who don't text

More free texting tools

Use them together before your next send.

10DLC compliance generatorOpt-in wording, HELP/STOP replies and privacy policy text.SMS character counterSee how many texts your message splits into.SMS link generatorA text-to-join link and QR code for your sign-up page.Synagogue textingTexting that reaches every member, kosher phones included.Church text messaging guideHow churches set up texting the right way.Why SMS beats email for RSVPsGetting past the spam folder.

SMS Spam Checker FAQ

Why are my text messages not being delivered?

The most common reasons are a public link shortener like bit.ly, content in a forbidden category such as raffles or loans, spammy wording, or texting from a number that isn't registered for 10DLC. Paste your text into the checker above to see which applies.

Does bit.ly get texts blocked?

Often, yes. Twilio says shared public URL shorteners are not permitted and will cause filtering. Use the full link on your own website or a short link on a domain you own.

Can a church or synagogue text about a raffle?

It's risky. Twilio lists 50/50 raffles and sweepstakes as gambling, which is forbidden for texting even for nonprofits. Text about the event, and put the raffle details on your website.

What is Twilio error 30007?

Error 30007 means the message was filtered, either by Twilio or by the recipient's carrier, because it looked like spam or broke messaging rules. Fix the content, then ask your provider for a review if clean texts still fail.

Do I need "Reply STOP" in every text?

Not in every one, but people need to know how to opt out. Include it in your first text and regularly after that, at least once a month for recurring messages.

Can this tool guarantee my text gets delivered?

No. Carriers don't publish their exact filters, and delivery also depends on your registration, your list and your sending volume. The checker catches the content problems that are most often reported to cause filtering.

Last updated November 2026 by Michael Pedoeem, founder of Evant.