Forum Discussion
421 4.2.0 sender rejected AUP#SNDR
I manage a few mail servers for my employer. We noticed that we are being blocked by T-Mobile (relay=tmo-east.mx.a.cloudfilter.net). We send a lot of messages to our customers' SMS gateway addresses ...
Having the same problem..
I am forwarding a few messages from my gmail email account to my T-Mobile number so I can get text messages of those emails..
The last few days the T-Mobile service has been returning this error..
At first it was just having trouble and rejecting delivery.. Now its outright blocking the messages..
What is going on? I’m just a regular T-Mobile user with a personal phone number.. I don’t have a business account or anything.. I just want to forward some messages from my gmail to my phone as text messages.. What do I need to do to make that happen again?
It was working just fine last week, and for the last several months since I set it up.. But the past week its been failing, and now I’m getting this error.
Can someone help me with this please?
¡Gracias de antemano!
