[kull]

I have this bookmarked from a few weeks ago found on HN [1].

[1] How to send text messages for free using Python | Use Python to send text messages via email https://www.alfredosequeida.com/blog/how-to-send-text-messag...

[mdrzn]

Not usable for these high volumes tho.

[ShrigmaMale]

I have tried email to sms, it doesn't work at my scale.

[futhey]

If you have rough estimates for what the upper limits of this approach are (based on your tests), I'd love to get a datapoint to keep in mind. I use this at low-moderate volumes.