Replies posted by lfolks
I am writing an app to send messages to my family members using our tmomail addresses, @srickar. My preferred format is a mime multipart containing text+html, as that method displays my email as the text sender. I'm getting these seemingly random results for 1 to 3 recipients at a time.Sometimes the messages go through just fine.Sometimes, the messages don't go through, but neither do I get any rejection response from T-Mobile. They just seem to disappear into the cloud.And, sometimes, the messages don't go through, but I do get a rejection response saying: 550 permanent failure for one or more recipients (firstname.lastname@example.org:blocked)If I send the messages as plain text (no html part), they come through 100% of the time; however, they display a random shortcode as the sender. My family then wouldn't know the text is from me without having to read the contents.The same multipart messages sent to my Gmail account for testing purposes are accepted by Google 100% of the time, with the f
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