Email to text messages blocked as Spam


    We occasionally send messages via email to a group of cell numbers as text messages.  Those to T-Mobile customers have recently been bounced back with the following errors:


    Your message couldn't be delivered to the recipients shown below. suspects your message is spam and rejected it.



    Messages suspected as spam


    Couldn't deliver the message to the following recipients:



    Is there a way to request whitelisting for our domain to avoid be blocked?srickar

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