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Re: [Samba] Samba AD Internal DNS, Postfix & Email Relay




That parameter isn't defined in my main.cf file.
Is I add it and leave it blank.  It still doesn't work.
On 2/25/2019 11:41 PM, Reindl Harald wrote:


Am 25.02.19 um 22:39 schrieb Marco Shmerykowsky PE via samba:
On 2/25/2019 3:36 AM, L.P.H. van Belle via samba wrote:
Hai Marco,

For you own domains, dont point postfix to your internal DNS only,
if done wrong you might miss dns info on the wan side and thats
mostlikely your error .

Likely.  Here is the error (ignore the ip's - messed them
up for this response):

Feb 25 16:22:10 sce252 postfix/smtp[3114]: 0D1E86E3A6D:
to=<marco@xxxxxxxxxxxxxxxxx>, orig_to=<root>, relay=mail.panix.com[1
6.8.1.8]:587, delay=317791, delays=317743/0.02/48/0.1, dsn=4.1.8,
status=deferred (host mail.xxxx.com[6.4.1.9] said:
  450 4.1.8 <root@xxxxxxxxxxxxxxxxxxxxxxxxxxx>: Sender address
rejected: Domain not found (in reply to RCPT TO comm
and
there is no error

when you configure
http://www.postfix.org/postconf.5.html#reject_unknown_sender_domain you
get what you asked for and since at this point
@sce252.internal.company.com is not found the message is *temporary*
rejected with 450

either order postfix to get started later so that dns lookups are
working or remove that option


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