Category Archives: Exchange

SMTP 554 5.1.0 Sender Denied

Sometimes an exchange mailbox not accept messages from one specific email, and show this message: “smtp 554 5.1.0 Sender Denied”

to see why the sender is not allowed , you can use this ps commands:




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External SMTP Relay with Exchange Server 2016 Using Anonymous Connections


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Hybrid configuration Office 365 and exchange 2010

This is a step by step to how to cofigure office 365 in a hybrid enviromment, with an exchange 2010 on premise single server, once you have your subscription activated,

the first step:

add your domain to office 665 console, you have two options to validate that you are the owner of the domain, adding some dns records is the option prefered:


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How to Export Mailboxes with Exchange Server 2010

This i a Guide to export mailboxes from Exchange 2010 database to a pst files.
Frist, You will have to be SP3 intalled

  • grant de right: New-ManagementRoleAssignment –Role “Mailbox Import Export” –User Administrador
  • Create a share with correct permissions \\server\pst
  • start the request: New-MailboxExportRequest -Mailbox name -FilePath \\server\pst\name.pst
  • check Status: Get-MailboxExportRequest
  • Delete the MailboxExportRequest: Get-MailboxExportRequest | where {$_.status -eq “Completed”}
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    Exchange 2010 Anti-Spam logs?

    To check the Anti-Spam logs on a Exchange 2010 server, you can do this:

    • The default logs files for the antispam agents are on: %exchangeinstallpath%TransportRoles\Logs\AgentLog
    • At this location you can see a lot of files (see the image)
    • logs1
    • on this files there are each email processed
    • for example in my domain “ “:

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