On 8/4/2011 3:32 AM, lst_ho...@kwsoft.de wrote: > Hello > > we got problems with customers requesting MDN according to RFC-3798 > with Disposition-Notification-To: header and using BATV on their > gateways. On our side we honor read-request and sent MDNs with empty > envelope sender to their Disposition-Notification-To: header which > is unfortunately different form their BATV envelope sender and > therefore dropped in many cases :-(
> As a workaround i had the idea to replace by Header check on our > side the Disposition-Notification-To address by the return path but > i'm not sure if this is doable or even a smart idea? > > Any comments? Not easy to do. You can't do that with header_checks or a postfix policy service, you would need a milter or proxy of some sort. At any rate, it wouldn't be a good idea to blindly rewrite all Disposition-Notification-To: headers to the envelope sender since they might be different intentionally. So I'm going with not a smart idea either. Ralf's suggestion of turning off DSN for selected offenders is probably the best. -- Noel Jones
