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re:Numeric Code: 5.1.1...
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Numeric Code: 5.1.1 <br>
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Possible Cause: • The e-mail account does not exist at the organization the message was sent to. This issue may occur if there was a problem when users were moved between sites. For example, if a former Administrative_Group_1 user moves to Administrative_Group_2 and then replies to an old e-mail message, or if the user does not re-create his or her Outlook profile, an old Administrative Group style LegDN address will be used, and an NDR is generated. <br>
• The message was sent to obsolete personal address book entries. <br>
• The categorizer rejected delivery because you configured your SMTP contact with see comment SMTP RFC821 characters. <br>
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Troubleshooting: Verify the recipient address and resend the message. Verify that the recipient address is formatted correctly and that the categorizer was able to correctly resolve the recipient. |
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