Getting Error code 5.7.1 in Outlook

  • Thread starter Tineveragh
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Tineveragh

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Ideas:

unable to relay when trying to send mail sometimes on outlook 2011 getting error code 5.7.1 just loaded office for Mac 2011 back on to my computer again having removed it because outlook crashed.
 
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Kathleen Orland [MVP]

Error code 5.7.1:

Permissions problem. For some reason the sender is not allowed to email this account. Perhaps an anonymous user is trying to send mail to a distribution list.

Check SMTP Virtual Server Access Tab. Try checking this box: Allow computers which successfully authenticate to relay.

User may have a manually created email address that does not match a System Policy.
Microsoft
 
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