Hide External contact

Hi,
You can use the:
Set-MailContact -Identity user@mydomain.com -HiddenFromAddressListsEnabled $true
command to hide these as in this link:
https://robiulislam.wordpress.com/2015/06/25/hide-external-contact-from-office-365-gal/

So, place the e-mail address in a csv then read this in via a script to set them all as hidden.

Something like:

ForEach ($user in $(Get-Content C:\temp\users.txt)) 
{
	Set-MailContact -Identity $user -HiddenFromAddressListsEnabled $true 
}

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how to check what this script will do and but not initiate it on any contact.. and also we need a output file also, once the script is completed when finally we need to run it

Just test it on one user in the csv initially

What output would you require?

To export all the contacts into a csv. file use following commanr

Get-MailContact -ResultSize Unlimited | Export-Csv C:\Contacts.csv

Then use below command in powershell to hide contacts available on contacts.csv file.

Import-Csv "C:\contacts.csv" | Foreach {get-mailcontact -identity $_.Contacts -Hiddenfromaddresslistenabled $true}

For output

Export a list for contacts hidden from GAL by running the following cmdlet:

Command:
Get-Mailcontact -Filter {HiddenFromAddressListsEnabled -eq $true} | Select identity,alias,HiddenFromAddressListsEnabled | Export-Csv -Path C:\HiddenContacts.csv -NoTypeInformation

output i need in .txt file like what is the result of the script

Andy also confirm, is this correct as per your first comment to initiate it

in script folder where CSV is saved

set-adserversettings -viewentireforest:$true
import-csv hide.csv | foreach {

   set-mailcontact -identity $_.PrimarySMTPAddress -HiddenFromAddressListsEnabled:$true

}

also if this correct, i need output in .txt file as a result that what this command will do and what changes it will do..

set-adserversettings -viewentireforest:$true
import-csv hide.csv | foreach
{
set-mailcontact -identity $_.PrimarySMTPAddress -HiddenFromAddressListsEnabled:$true
$userchange = $_.PrimarySMTPAddress " hidden from Address List"
}
$userchange | Export-CSV -Path C:\temp\UserChangeLog.csv -NoTypeInformation

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is this tested?

what is the line 5 do.. not sure about " hidden from Address List"

Tested:

ForEach ($user in $(Get-Content C:\temp\hide.csv))
{
$change = Set-Mailbox -identity $user -HiddenFromAddressListsEnabled $true
}

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in the command tested, you put Set-mailbox, i think it need to be set-mailcontact..

awsum