search for: 0d1e86e3a6d

...gt; > 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 at sce-engineers.com>, 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 at sce252.internal.company.com>: Sender address rejected: Domain not foun...

...al 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 at sce-engineers.com>, 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 at sce252.internal.company.com>: Send...

...int 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 at sce-engineers.com>, 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 at sce252.internal.company.com>: Sender address > r...

...; 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 at sce-engineers.com>, 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 at sce252.internal.compa...

Is there an extra step which must be taken to get postfix to deliver email via a relay host when the postfix machine is pointing to an samba internal DNS? I did a test setup using a public DNS server and it worked. Same setup where the machine (Debian 9) is pointing to a samba DNS doesn't work. The errors in the postfix log seem to be DNS related. Thanks,