Code Snippets

Exporting AD user list

> dsquery user -name * -limit 0 >> c:\users.txt

Exchange Office365 Tips & tricks

MRS Proxy Error “The connection to the server could not be completed”

Check MRS endpoint user and password.

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Exchange Microsoft

Exchange 2013 not receiving external emails

Backpressure,  check for free space on the disks.


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Notepad++ Utils

Find duplicates and delete all in notepad++,,,,,,,,,,,

I need results back like,,,,,,


  1. sort line with Edit -> Line Operations -> Sort Lines Lexicographically ascending
  2. do a Find / Replace:
    • Find What: ^(.*\r?\n)\1+
    • Replace with: (Nothing, leave empty)
    • Check Regular Expression in the lower left
    • Click Replace All

How it works: The sorting puts the duplicates behind each other. The find matches a line ^(.*\r?\n) and captures the line in \1 then it continues and tries to find \1 one or more times (+) behind the first match. Such a block of duplicates (if it exists) is replaced with nothing.

The \r?\n should deal nicely with Windows and Unix lineendings.


Worldwide payment methods (some)

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Exchange Microsoft Office365

Remote Server returned ‘550 5.1.8 Access denied, bad outbound sender

Remote Server returned ‘550 5.1.8 Access denied, bad outbound sender’


Non-Office 365 user use this (self-service delisting portal) to remove themselves from the blocked senders list.

Office 365 user, as an admin you can unblock your blocked Office 365 email account via using Exchange admin center.

• Go to the EAC, navigate to protection > action center.
• Select the Search icon and enter the SMTP address of the blocked user.
• Click Unblock Account in the description pane.
• Click Yes to confirm the change.

For more detailed information, please refer to the article: Removing a user, domain, or IP address from a block list after sending spam email

Exchange Microsoft

421 4.4.2 message submission rate for this client has exceeded the configured limit

Solved after run the command Set-receiveconnector “Server Name\Client Connector” -Messageratelimit 100.


Níveis de qualificação – Quadro Nacional de Qualificações (QNQ)

Imagina que a meio do curso tens necessidade de ir viver para um outro país da União Europeia ou que depois de teres terminado o curso quer mesmo ir trabalhar ou estudar para o estrangeiro. Ora, tudo isto é hoje mais fácil, pois desde outubro de 2010 Portugal tem em vigor um Quadro Nacional de Qualificações (QNQ).

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Technology Companies Create RAIN to Promote EPC UHF RFID Adoption

Four technology companies have teamed up to form RAIN RFID, an organization whose mission is to promote the adoption of EPC ultrahigh-frequency (UHF) RFID. The organization—founded by Impinj, Intel, Google and Smartrac, and hosted by automatic-identification trade association AIM—is focused on driving UHF RFID deployment through education, testing and support of technology developers and end users. The group announced its launch today at RFID Journal LIVE! 2014, taking place this week in Orlando, Fla.

The word RAIN—an acronym derived from RAdio frequency IdentificatioN—is intended as a nod to the link between UHF RFID and the cloud, where RFID-based data can be stored, managed and shared via the Internet. With a six-member board consisting of an AIM liaison, four elected directors and a president, the alliance was conceived following standards organization GS1‘s ratification of the UHF Gen2v2 standard in November 2013 (see GS1 Ratifies EPC Gen2v2, Adds Security Features, More Memory). That ratification, says Chris Diorio, RAIN’s chairman of the board and Impinj’s chief strategy and technology officer, signifies further maturity in the UHF market, at the same time that item-level UHF RFID tagging for the retail sector has grown exponentially.

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Exchange Tutorials

550 5.7.1 Message rejected as spam by Content Filtering

Content Filtering has been enabled on the recipients’ mail server. This configuration is incompatible with GFI MailEssentials when installed as a relay server, all email filtering should happen on the relay server. For more information on Content Filtering and how to disable it, please see the following:

If the mail server is Microsoft Exchange 2013 and 2016 server:

If the mail server is Microsoft Exchange 2010 server:

If the mail server is Microsoft Exchange 2007 server: