We had a multi forest environment with Server 2008 R2 domain controllers and Exchange 2013 CU2 installed and trying to migrate the mailboxes between two forest exchange installations with the New-Move request cmdlet.

New-MoveRequest -Identity “james@contoso.com” -Remote -TargetDatabase “Tailspin Mailb?ox Database” -RemoteGlobalCatalog “GC.Tailspin.com” -RemoteCredential $Rcred -TargetDeliveryDomain “Tailspin.org” -RemoteHos?tName server.tailspin.com -Verbose

However it kept failing with the following error

New-MoveRequest for a move mailbox across forest fails with the following error:

New-MoveRequest : The call to ‘https://server.tailspin.com/EWS/mrsproxy.svc’ failed. Error?details: Could not establish trust relationship for the SSL/TLS secure channel with authority ‘server.tailspin.com‘.?–> The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. –>?The remote certificate is invalid according to the validation procedure.. –> Could not establish trust relationship?for the SSL/TLS secure channel with authority ‘server.tailspin.com‘. –> The underlying connection was closed: Could?not establish trust relationship for the SSL/TLS secure channel. –> The remote certificate is invalid according to the?

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An automobile enthusiast at heart and computer geek by profession, started my Career with MS in 2005.Left Jobs and started Pledge Technologies (the parent company to Grishbi) back in 2009.We have been providing IT consulting to various Small and Medium businesses across US and UK since then.Our company specialises in Microsoft Server technologies like AD, Exchange, the rest and with numerous Office 365 migrations under our belt, we quite an expert with that too. Whatever we learn in our day to day life, we share it back on Grishbi as a Thank for all the love and support our customers have given us.