sending text to my cell phone using no longer working?

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I am also having this issue and opened two tickets, with the latest being escalated.


Thank you for being a valued T-Mobile customer! Trouble Ticket # 75019739 has been opened on your account. Please allow 3 business days for teams to review. Resolution can take longer depending on the issue. 

I have tmobile business lines for all my field service techs and they depend on this messaging to respond and repair to equipment in the field, now they havent gotten any notifications and equipment is down without us knowing.


major issue!

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Same problem using iCloud email. The failure messages go into my junk mail 100% of the time, hours after I sent the original message, so I had to keep an eye out for them.

They generally look like this:

<>: host[]
   said: 452 4.1.0 <> server temporarily unavailable
   AUP#MXRT (in reply to MAIL FROM command)


OR, occasionally:

<>: host[]
   refused to talk to me: 421 cmsmtp too
   many sessions from AUP#CNCT


The ‘17.’ IP address in the 2nd failure is an iCloud server.

Userlevel 1
Badge +3

I just posted a response to a similar thread. The spam filters T-Mobile/Cloudfilter is using, are preventing legitimate messages from being delivered, which is a problem. It’s beyond ridiculous now.


🤔Time to start a class action Lawsuit ?

We have been experiencing this issue since June.  Some days it works, other days email is rejected.  We have tried getting messages thru using gmail, aol, outlook - all with the same result.  So far T-Mobile has refused to accept responsibility.  They tried to point to gmail…   Not a gmail issue.  Our alarm system has sent these notifications for years with no problem.  Can’t get anyone to listen to the issue, since you can’t talk with the engineering team, only support help desk.  I have opened a complaint with the BBB and refused to agree to close the ticket until they resolve.  More people should try this route to apply pressure.