Although I can use the regular Apple mail client to send a SMS text message through Tmoble using 111-111-1111@tmomail.net, I can not do so within Indigo using its Email function. Note: the hyphens are not used in the actual email address.
I did a couple of tests with my provider -- Verizon (US).
Sending a text message through the Indigo SMTP device to my phone number did NOT go through. Sending a text message through the MacOS Mail.app to my phone number did NOT go through.
Sending a text message through the MacOS Mail.app to my phone number from a different email address DID go through. Sending an email message through the Indigo SMTP device DID go through.
FWIW, I recently had a text notification show up hours after it should have which I chalked up to Verizon; but now I think it might be the email provider I use for Indigo that's the culprit.
I came here to drink milk and kick ass....and I've just finished my milk.
Just to follow up on this, I did receive my original SMS message -- 4 hours and 40 minutes after I sent it. I just sent another and it arrived in about 10-15 seconds.
I'm more confident than ever that the issue for me lies with the email service I'm using and not the plugin.
I came here to drink milk and kick ass....and I've just finished my milk.