[otrs] Postmaster filter applied still getting wrong data

Hello I hadconfigured post-master filter so all mails from company domain are set to sender type Agent. Still in ticket details, I see sender is listed as Customer . See the logs below Filter: 'SetSenderType' Set param 'X-OTRS-SenderType' to 'Agent' (Message-ID: <516E5485.1050901 The sender was earlier added as customer but its not setas invalid. But as per above log its applying the filter and marking Agent but still in GUI, in ticket details, in sender column I can see Customer. Thanks darshak