Hi @Daniel Avegalio ,
Welcome to our forum!
Looks like your issue is more related to your account, please kindly understand that the Outlook tag here we mainly focus on general issues about Outlook desktop client. If you are using an Outlook.com account, it's suggested that you could post your case in dedicated forum for Outlook.com for more professional advice.
On the other hand, i found a similar thread as yours, it's suggested that you could refer to it and try the helpful suggestions as IBRAHIM ADAN ABDI-BASID mentioned in it: We cannot send a text message to this number Account login.
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