REsimpli texts not sending? Check 10DLC, daily limits and landline flags

Most REsimpli texts that fail are stopped by carrier rules every US business texter lives with, not by a bug. Work through these checks in order before you raise a ticket, and you will either find the cause or have the evidence support needs.

1. 1

   Is your 10DLC registration approved?

   REsimpli says outbound texts do not go out until A2P 10DLC is approved. Carrier review takes around two to four weeks.

2. 2

   Are your numbers linked to the campaign?

   Approved but still blocked? Existing numbers usually link within a few days of approval; newly ported numbers link once configured.

3. 3

   Does your first message name your company?

   The first text to each contact must include your 10DLC company name or carriers will not deliver it. Follow-ups do not need it.

4. 4

   Are you inside the limits?

   Texts go out 8 AM to 8 PM in the recipient’s time zone, up to about 2,500 a day per account. Support can ask the carrier to raise the cap.

5. 5

   Is the number flagged, or read as a landline?

   Spam labels can take several months to clear. Users report numbers newly read as landlines since 6.0; send those to support.

Is my 10DLC registration approved and my numbers linked?

A2P 10DLC is how US carriers vet business texting from local numbers, and REsimpli is clear that nothing goes out before approval. When the brand and campaign are approved, REsimpli says existing numbers are linked to the campaign automatically, usually within a few days, and newly ported numbers are linked once configured. If you were approved yesterday, the numbers are the likely reason. The fees REsimpli lists are $50 to enable T-Mobile messaging, a $4 carrier registration fee and $10 a month for every one to forty-nine numbers.

Does my first message include my 10DLC company name?

It has to. REsimpli says carriers require your 10DLC company name in the first message to each contact, and the message will not be delivered without it. Follow-ups do not need it. Check your first-touch templates and any automation that sends the opening text.

Did I hit the daily limit or the sending window?

The default is about 2,500 texts a day per account, not per number, which REsimpli says is a carrier limit set by Twilio that support can ask to raise. Separately, texts only go out between 8 AM and 8 PM in the time zone of the number you are texting, judged by its area code.

Why are some numbers suddenly flagged as landlines?

REsimpli’s help center does not explain this one. Since 6.0, users have reported numbers they had texted for months being treated as landlines and blocked. Texts cannot reach a true landline, so confirm the line type, and send the numbers that are wrongly classified to support with dates and examples.

How long does it take to clear a spam label?

REsimpli’s spam article says remediation is not instant: some improvement can show within days or weeks, and full propagation across carriers, analytics providers and devices can take several months. Rotating fresh numbers does not fix the sending pattern that earned the label.

Would texting be easier somewhere else?

The rules travel with you. Any provider sending business texts from US local numbers needs 10DLC approval; HubSpot’s own marketing SMS, for example, lists six to eight business days for 10DLC registration and requires Marketing Hub Professional or Enterprise with an SMS add-on. If you are planning a move, start the new registration before you port, as the phone number guide explains.