Forum Discussion
kovr
Hace 3 añosNewbie Caller
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 ...
hepcat72
Hace 3 añosTransmission Trainee
they own Cloudfilter.net
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