Can the recipient block my messages?
The recipient stays in control: they can filter the sender.
Since messages are sent from a shared gateway number, the recipient can block that number. Always respect a refusal of contact: persistence may amount to harassment.
Yes. As with any SMS, the recipient can block or filter the displayed sender if they no longer want to receive messages.
The answer in detail
The block applies to the gateway number shown on the recipient's side. Since this identifier is shared, the recipient acts on what they see, not on a line that would be your own.
It's a normal and desirable protection: everyone must be able to refuse unwanted messages. Insisting after a clear block amounts to harassment, with the risks that entails.
The right reflex: a respectful message, a single send, and acceptance of any silence. The tool being free and simple doesn't dispense with the other person's consent to continue the exchange.
Concrete examples
›Filtering on the recipient's side
The recipient marks the sender as unwanted: your messages no longer arrive.
›Respect the refusal
No reply or a block: you don't insist, on pain of slipping into harassment.
Takeaway
The recipient can block the sender; respect their choice, insisting becomes harassment.
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