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Roundcube SMTP 451 temporary lookup failure
TGates Offline
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RE: Roundcube SMTP 451 temporary lookup failure
08-30-2017, 02:31 AM
According to intoDNS, you do not have MX records for the domain: https://intodns.com/stacknet.eu
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RE: Roundcube SMTP 451 temporary lookup failure - by TGates - 08-30-2017, 02:31 AM

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