We offer an optional paid plan to have your Twine send SMS (and voice call) notifications. You can read more about it here: https://twine.supermechanical.com/plus. If you're signed up and aren't getting SMSs, please send us a message.
To have your Twine sends SMS messages through the recipient's carrier's email gateway, check http://en.wikipedia.org/wiki/List_of_SMS_gateways to see the proper way to format the email address. The email to SMS gateway does not work reliably for most carriers so we no longer support this method.
If your AT&T phone is not getting a text message from Twine, visit http://mymessages.wireless.att.com/ and see if there are settings you can change that will let through email from firstname.lastname@example.org.
If your Rogers phone is not getting a text message from Twine, you need to allow email-to-SMS messages. To do this, text 'Subscribe' to 0000000000. Then text 'Allow supermechanical.net' to the same number. This will allow text messages from your Twine to get through, and not marked as spam. Read Rogers' documentation.
If your Vodafone D2 phone is not getting a text message, enable the receipt of e-mail based text messages by sending an SMS with the word OPEN to the short number 3400. Important: Make sure the short message service center +49 172 2270 333 is stored in your mobile phone.
If your O2 phone is not getting text messages, compose a text message with the word 'ON' and send it to shortcode 212. Then follow the on-screen prompts.