Another way to cut down on costs is to use email-to-SMS gateways. Emails are usually way cheaper to send than SMS ($0.0005 per email with Mailgun vs $0.0075 per

Another way to cut down on costs is to use email-to-SMS gateways. Emails are usually way cheaper to send than SMS ($0.0005 per email with Mailgun vs $0.0075 per SMS through Twilio). The biggest downside is that these gateways can be a bit flakey, but I had good results with CorpScores[1]. [1] https://github.com/kevana/corpscores/blob/master/dci_notify/sms.py https://github.com/kevana/corpscores/blob/master/dci_notify/...