New Member
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1 Message
Client is receiving "5.2.0 (unknown mailbox-related status)"
When messages are sent to generate a SMS text messages they are not delivering and impacting services within our organization. The client is requesting an engineer to engage for support in remediation.
sandblaster
ACE - Expert
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64.7K Messages
1 year ago
This is a customer populated forum, not official ATT support. You will not engage an engineer here. Even if ATTHelp responds, they are not technical support.
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