SMS.to

When you try to add funds, you receive an error message. This error usually comes up when SMS.to payment portal detects several failed payment attempts. If ...

We advise to use a max. limit of 500 numbers per request. Please find an example at https://docs.sms.to/api/#send-campaign-message.

You have the opportunity to disallow sending messages towards certain countries in your account's security settings:

For example when a campaign is scheduled, we internally save the timestamp of it's scheduled time in Unix time format and not in the format, which is e...