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 ...
Hmmm… Yeah, the lack of a hotspot is somewhat of an issue. I rarely use it, but when I do, it's usually really important.
