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email server - Konica Minolta scanner cannot send outgoing mail via SMTP. Can I decipher the correct settings without resorting to onsite IT visit? - Server Fault
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Fehler „553 mailbox name not allowed“ in Verbindung mit E-Mail Signatur über CI-Cloud | ci solution GmbH
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mail() [function.mail]: SMTP server response: 553 We do not relay non-local mail, sorry. | Drupal.org
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