Update safelist using Powershell in Exchange 2007
Saturday, January 12th, 2008get-mailbox -ResultSize Unlimited | where {$_.RecipientType -eq [Microsoft.Exchange.Data.Directory.Recipient.RecipientType]::UserMailbox } | update-safelist
get-mailbox -ResultSize Unlimited | where {$_.RecipientType -eq [Microsoft.Exchange.Data.Directory.Recipient.RecipientType]::UserMailbox } | update-safelist