On Jun 1, 2012, at 09:49, Wael MANAI wrote: > Well, I use postfix for MMS sending (MM4 protocol which is based on SMTP). I > am working on a hub system i.e I received MMS from one GSM operator, I do > some adaptations and I forward the MMS to the destination. Sometimes for > example the recipient may be rejected by the remote mailer so I need to > intercept this mailer daemon (done) in order to modify some MM4 parameters > then send it to the origin. The problem is the recipient of the mailer daemon > receives 2 mails: one correct sent by my application, another incorrect sent > by postfix. So I want to block the mail sent by postfix.
Hmm, not familiar with MM4, but have you looked at the various bounce related configuration options that Postfix provides? This is where I would start looking; http://www.postfix.org/postconf.5.html#bounce_service_name http://www.postfix.org/bounce.8.html http://www.postfix.org/postconf.5.html#bounce_template_file http://www.postfix.org/bounce.5.html http://www.postfix.org/postconf.5.html#internal_mail_filter_classes And what Ram suggested; http://www.postfix.org/postconf.5.html#soft_bounce Perhaps it's possible to use a custom bounce service, a custom bounce template, or something similar, and have Postfix generate the format you need? Cya, Jona -- > Le vendredi 01 juin 2012 à 13:13 +0530, Ram a écrit : >> You can enable soft bounce. So NDR mails will be pending in the queue >> But I am not sure really want to do this. >> Why should you not notify senders of delivery failures ? What is the real >> problem you want to solve ? >> >> >> >> >> >> On 06/01/2012 12:36 PM, Wael MANAI wrote: >>> Any idea? >>> >>> Le jeudi 31 mai 2012 à 17:49 +0200, Wael MANAI a écrit : >>>> Hi everybody, >>>> >>>> I would like to know if it's possible to prevent postfix to NOT send a >>>> MAILER DAEMON email back to the sender if something is wrong? >>>> >>>> thanks in advance,