Re: empty MAIL FROM and check_sender_access
> On Sep 25, 2018, at 12:27 PM, Stefan Bauer wrote: > > I notice that only outlook out of all my mail clients, use the null mailer > address. it looks to me after reading the standard - that outlook does it > right. Is that correct? Outlook is perhaps the only one that is actually sending MDNs. These are often not supported or enabled in other mail user agents. -- Viktor.
Re: empty MAIL FROM and check_sender_access
I notice that only outlook out of all my mail clients, use the null mailer address. it looks to me after reading the standard - that outlook does it right. Is that correct? Am Di., 25. Sep. 2018 um 17:22 Uhr schrieb Viktor Dukhovni < postfix-us...@dukhovni.org>: > > > > On Sep 25, 2018, at 10:13 AM, Stefan Bauer > wrote: > > > > I was more asking if it's even a good idea to add the null entry to the > table? i would like to be a good postmaster but not want to relax policies > for allowed sender addresses. > > You need to allow mail with null return addresses. These are required in > bounces > and auto-replies to avoid loops. > > -- > Viktor. > >
Re: empty MAIL FROM and check_sender_access
> On Sep 25, 2018, at 10:13 AM, Stefan Bauer wrote: > > I was more asking if it's even a good idea to add the null entry to the > table? i would like to be a good postmaster but not want to relax policies > for allowed sender addresses. You need to allow mail with null return addresses. These are required in bounces and auto-replies to avoid loops. -- Viktor.
empty MAIL FROM and check_sender_access
I was more asking if it's even a good idea to add the null entry to the table? i would like to be a good postmaster but not want to relax policies for allowed sender addresses. Am Di., 25. Sep. 2018 um 13:26 Uhr schrieb Wietse Venema < wie...@porcupine.org>: > > Stefan Bauer: > > Hi, > > > > I'm using smtpd_sender_restrictions = check_sender_access > > hash:/etc/postfix/allowed_sender > > > > to make sure, my senders only send out with pre-defined and allowed domains. > > > > Now i noticed, that if my users acknowledge "read confirmations" in > > clients, mails in the following form arrive at postfix: > > > > from=<> to= proto=ESMTP helo= > > > > and will be rejected as empty mail from is not allowed by > > check_sender_access. > > > > Howto deal with that? > > http://www.postfix.org/postconf.5.html#smtpd_null_access_lookup_key > > Wietse
Re: empty MAIL FROM and check_sender_access
Stefan Bauer: > Hi, > > I'm using smtpd_sender_restrictions = check_sender_access > hash:/etc/postfix/allowed_sender > > to make sure, my senders only send out with pre-defined and allowed domains. > > Now i noticed, that if my users acknowledge "read confirmations" in > clients, mails in the following form arrive at postfix: > > from=<> to= proto=ESMTP helo= > > and will be rejected as empty mail from is not allowed by > check_sender_access. > > Howto deal with that? http://www.postfix.org/postconf.5.html#smtpd_null_access_lookup_key Wietse
empty MAIL FROM and check_sender_access
Hi, I'm using smtpd_sender_restrictions = check_sender_access hash:/etc/postfix/allowed_sender to make sure, my senders only send out with pre-defined and allowed domains. Now i noticed, that if my users acknowledge "read confirmations" in clients, mails in the following form arrive at postfix: from=<> to= proto=ESMTP helo= and will be rejected as empty mail from is not allowed by check_sender_access. Howto deal with that?
