When you upgrade to Microsoft BizTalk Server 2013, SSH FTP (SFTP) adapter can't receive data from certain SFTP servers. Additionally, you receive the following error messages:
<Date><Time> BizTalk Server Error 5753 A message received by adapter "SFTP" on receive location "AccountingAndControl.BusinessIntelligence.TransferProjectID.ReceiveProjectID.SAPBW.SFTP" with URI "sftp://<Host Name>:22//*.xml" is suspended. Error details: There was a failure executing the receive pipeline: "Microsoft.BizTalk.DefaultPipelines.PassThruReceive, Microsoft.BizTalk.DefaultPipelines, Version=3.0.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Source: "Unknown " Receive Port: "AccountingAndControl.BusinessIntelligence.TransferProjectID.ReceiveProjectID" URI: "sftp://<Host Name>:22//*.xml" Reason: There is no Unicode byte order mark. Cannot switch to Unicode. MessageId: {<MeaasgeId>} InstanceID: {<InstanceId>}