Am 21.01.2010 10:12, schrieb luca: > I tried but nothing in that page seems to help me > > Robert Schetterer ha scritto: >> Am 20.01.2010 12:48, schrieb luca: >> >>> Hi,
as i understand http://www.postfix.org/DSN_README.html you can disable dsn for the exchange ip Use the smtpd_discard_ehlo_keyword_address_maps feature if you wish to allow DSN requests from trusted clients but not from random strangers (see below for how to turn this off for all clients): /etc/postfix/main.cf: smtpd_discard_ehlo_keyword_address_maps = cidr:/etc/postfix/esmtp_access /etc/postfix/esmtp_access: # Allow DSN requests from local subnet only 192.168.0.0/28 silent-discard 0.0.0.0/0 silent-discard, dsn ::/0 silent-discard, dsn If you want to disallow all use of DSN requests from the network, use the smtpd_discard_ehlo_keywords feature: /etc/postfix/main.cf: smtpd_discard_ehlo_keywords = silent-discard, dsn but i am not sure if i am right here, and if that is what you want perhaps postfix gurus may help >>> >>> Yes I know it is not a bug. >>> I would like to know if it is possible to configure postfix so that the >>> answers it gives to >>> the Exchange Server instruments it to avoid producing the email to the >>> sending user. >>> >> >> I am not sure but maybe >> http://www.postfix.org/DSN_README.html >> >> helps >> >>> Robert Schetterer ha scritto: >>> >>>> Am 20.01.2010 11:55, schrieb luca: >>>> >>>> >>>>> Hi, >>>>> >>>>> I have a working postfix server from long time. >>>>> >>>>> Now i found out that mails with a read receipt coming from one (and only >>>>> one) Exchange Server >>>>> are correctely delivered as well as thier read receipt. >>>>> >>>>> However when such mails are sent the sender receive this mail, too. >>>>> >>>>> >>>>> /This is an automatically generated Delivery Status Notification./ >>>>> >>>>> /Your message has been successfully relayed to the following recipients, >>>>> but the requested delivery status notifications may not be generated by >>>>> the destination./ >>>>> >>>>> /<my_address>@<my_server.com> >>>>> / >>>>> >>>>> >>>>> It sounds as the Exchange Server is not able to understand how the mail >>>>> will be delivered. >>>>> Moreover in the postfix log i read: >>>>> >>>>> /Jan 20 10:01:43 ds4738 postfix/virtual[30833]: 0BE601B48010: >>>>> to=//<my_address>@<my_server.com//>, relay=virtual, delay=1.1, >>>>> delays=1/0/0/0.01, dsn=2.0.0, status=sent (delivered to maildir) >>>>> / >>>>> >>>>> So that it sounds that the mail has been correctly received (and >>>>> delivered) by postfix. >>>>> >>>>> Is there any way to solve this problem? >>>>> >>>>> >>>> Hi, sounds not like a bug , looks like work as designed >>>> what is your Problem with ? >>>> >>>> /Your message has been successfully relayed to the following recipients, >>>> >>>> >>>>> but the requested delivery status notifications may not be generated by >>>>> the destination./ >>>>> >>>>> >>>> >>>> >>>> >> >> >> -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria
