texts show up as email @mms.att.net
What is causing text messages to come through as email with @mms.att.net
What is causing text messages to come through as email with @mms.att.net
Can you provide some context? Are those incoming or outgoing messages? Do you have MMS turned on in Settings/Messages? Do you have a cellular network connection and cellular data turned on?
texts show up as email @mms.att.net