There are many restrictions on the local networks in Canada on the types of messages you can send and to what volume.
You will require a local Number to use as the originator, to send SMS in Canada.
Account Whitelisting
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Bulk SMS
The Bulk SMS facility is not supported in Canada. Operators hold the right to filter and block messages that they deem are of bulk nature and don’t adhere to the internal guidelines.
Operators consider messages to be bulk if there is a group of messages with similar content sent from the same originator. We’ve found that when split across smaller groups (<100 messages) and different times of sending (spaces of 5 minutes, for example), allows for a better delivery rate.
Maximum Messages
You need to purchase at least one local number to send messages in Canada. Our platform offers 500 SMS (160 characters) per Number per day to be sent and we will throttle the amount of messages to be sent out at 1 SMS per second. If you send more than this, our platform may not allow but you may still be charged.
Delivery within this threshold can be affected by the above mentioned restrictions applied at the networks’ discretion. This is not under our control.
Filtering
Messages that promote gambling, betting and/or adult content as well as website links are not permitted to be sent. All messages of this nature are considered spam and/or unsolicited and may be filtered. This is not under our control.
Traffic that has been delivered successfully, does not necessarily imply compliance with industry guidelines and regulations. Due to a lack of insight from the local operators we cannot provide more proactive details on additional filtering that may take place.