Rules
Is it legal to send bulk SMS from my own number?
Usually yes, if you follow the rules for the kind of message and the country you send to: service messages to your customers, like appointment reminders, have lighter rules than marketing, and marketing needs the person's consent and an easy way to say no, such as replying STOP. DroidSender sends your SMS from your own Android phone and number and handles STOP replies automatically.
Service message or marketing?
- Service messages are about something the customer already has with you: an appointment reminder, a visit time, a delivery, an account notice.
- Marketing promotes a product, an offer or an event, including "time to book again" texts.
- A service message with an offer added to it counts as marketing.
European Union
Under the ePrivacy Directive, marketing by SMS needs the person's prior consent. A business may text its own customers about similar products if they could object, easily and for free, when their details were collected and in every message. The GDPR also applies to the contact data, and people can object to marketing at any time.
United Kingdom
Under PECR, you must not send marketing texts to individuals without their consent, except the "soft opt-in" for your own previous customers, who must get a simple way to opt out when you collect their details and in every message. Messages that only confirm or remind people about appointments are service messages, not marketing.
United States
Under the TCPA, FCC rules ban automated texts to mobile phones without the owner's prior consent: written consent for commercial texts, while for informational texts it may be oral. People can opt out at any time, for example by replying STOP.
What DroidSender does for you
- Replies like STOP are recorded and the number is blocked for your account, in campaigns, the API and the inbox.
- Every campaign is checked for scams before the first SMS goes out.
- Each campaign can control its speed, sending hours, days and a daily limit.
How DroidSender expects you to use it: Responsible use
Your carrier has its own rules on volume and speed: Carrier limits
Checked November 2026
UK, marketing texts, consent and the soft opt-in (ICO): ico.org.uk: electronic mail marketing
UK, service messages are not direct marketing (ICO): ico.org.uk: identify direct marketing
EU, ePrivacy Directive, Article 13: eur-lex.europa.eu: Directive 2002/58/EC
EU, GDPR, the right to object to direct marketing (Article 21): eur-lex.europa.eu: Regulation 2016/679
US, texts and consent (FCC): fcc.gov: stop unwanted robocalls and texts
This page is general information, not legal advice. The rules change and depend on your country and your case, so for a specific situation ask a lawyer or your national regulator.
Short answers
Still not sure? Ask the assistant on this page or book a call with us.
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Do I need consent to send appointment reminders?
In the UK, a message that only reminds someone of their appointment is a service message, not marketing. In the US, automated texts need prior consent even when they are informational, though it may be oral. In the EU, the consent rule for SMS is about marketing, and the GDPR applies to the contact data.
Do I have to add "Reply STOP" to my texts?
For marketing, people must have an easy, free way to say no in every message, in the EU and the UK, and replying STOP is the usual way. DroidSender handles STOP replies automatically.
Is this legal advice?
No. It is general information, checked against the official pages in November 2026. For your own case, ask a lawyer or your national regulator.
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