* lst_ho...@kwsoft.de <lst_ho...@kwsoft.de>: > 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 :-(
Oh yes, I know these :-( > 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? You could also drop the MDN request when it comes from these idjuts: smtpd_discard_ehlo_keyword_address_maps = cidr:/etc/postfix/smtpd_discard_ehlo_keyword.cidr containing: 84.254.120.0/24 DSN 62.154.152.170 DSN 62.154.152.169 DSN 193.174.169.3 DSN 194.208.32.10 DSN 212.144.97.105 DSN -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de
