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sue_va_gw

Thunderbird messenger SMTP problem

Sue_va
9 years ago

This is part of the message I get when a message I send comes back to me:
<xxxx The following addresses had permanent fatal errors -----
<xxxx@ntelos.net>
(reason: 553 5.3.5 system config error)
(expanded from: <xxxxx@ntelos.net>)
----- Transcript of session follows -----
553 5.3.5 [127.0.0.1] config error: mail loops back to me (MX problem?)
554 5.3.5 Local configuration error
550 5.1.1 postmaster... User unknown
ntelos.net>
(reason: 553 5.3.5 system config error)
(expanded from: <xxx@ntelos.net>)
----- Transcript of session follows -----
553 5.3.5 [127.0.0.1] config error: mail loops back to me (MX problem?)
554 5.3.5 Local configuration error
550 5.1.1 postmaster... User unknown
This is an address I use constantly and have used forever and now I get that message. Every other address in my address book works fine. How do I solve the problem?
TIA
Sue

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