Remote Server returned ‘550 5.7.520 Access denied, Your organization does not allow external forwarding. Please contact your administrator for further assistance. AS(7555)’

When trying to use external forwarding on a Shared Mailbox: user@domain.tldRemote Server returned ‘550 5.7.520 Access denied, Your organization does not allow external forwarding. Please contact your administrator for further assistance. AS(7555)’ Go to: https://protection.office.com/antispam Create policy -> Outbound -> user@domain.tld -> Forwarding is enabled.

The command you tried to run isn’t currently allowed in your organization. To run this command, you first need to run the command: Enable-OrganizationCustomization

When trying to add an anti-spam policy in O365 Security Portal the following message occurs: All the customers where we already added anti-spam policies without this message used Azure AD Connect, I think this activates the OrganizationCustomization option. On Windows 10, open elevated Powershell: Install-Module -Name ExchangeOnlineManagement Import-Module ExchangeOnlineManagement Connect-ExchangeOnline -UserPrincipalName user@domain.tld Enable-OrganizationCustomization

“Symantec Endpoint Protection has detected that there are pending system changes that require a reboot. Please reboot the system and rerun the installation.”

When trying to install Symantec Endpoint Security the following error may show up: “Symantec Endpoint Protection has detected that there are pending system changes that require a reboot. Please reboot the system and rerun the installation.” The first step would be to reboot, but sometimes this is not possible because of important system services, or …

Another service operation is currently in progress

When trying to install Symantec Endpoint Protection the following error may popup: “Aanother service operation is currently in progress” Try a reboot first, if not possible or problem still exists, try the following: Open Windows Registry Editor. Click Start > Run, type regedit, and click OK. Back up the registry. Note: For Windows Registry backup and restore instructions, see How to back …

Default passwords

Below we will publish default passwords we encounter. General (vendor): 3Com: admin/admin Belkin: admin/admin BenQ: admin/admin D-Link: admin/admin Digicom: user/password or admin/michelangelo Linksys: admin/admin Netgear: admin/password Sitecom: sitecom/admin Thomson: user/user US Robotics: admin/admin Zebra: admin/1234 Specific (device): Brother MFC-L9570CDW: initpass Brother LP844: admin/1234 Panasonic KX-UT133NE: admin/adminpass