Find FrowardTo Outlook Rules via Powershell

Question

Hello everyone!
We have Exchange 2010 organization and about 10000 user's mailboxes. Some of users have outlook rules, that forward to external addresses. There is a list of allowed domains in txt file. Now i need find all rules that forward to external addresses and not
in list of allowed domain. Please help me!!!
I can find all forward to external addresses rules, but how can i find only that not in allowed list?
get-mailbox -resultsize unlimited | get-inboxrule -ErrorAction:SilentlyContinue | ? {$_.ForwardTo -ne $null -and $_.ForwardTo -notmatch "EX:/"}

Answer 1

I hope this may be helpful for you 
http://serverfault.com/questions/283098/find-users-that-are-auto-forwarding-redirecting-their-email-in-exchange-2010-u
foreach ($i in (Get-Mailbox -ResultSize unlimited)) { Get-InboxRule -Mailbox $i.DistinguishedName | where {$_.RedirectTo -or $_.ForwardTo -and -not ($_.description -match "If the message") } | fl MailboxOwnerId,Description >> rules.txt }
Regards, Sourabh Kumar Jha | Please mark it as an answer if it solves your problem or vote as helpful if you like it. |