Re: Hi.how to set up "bounce unix - - n - 0 bounce" by using Postconf
On Sep 26, 2019, at 00:18, feier8097 wrote: > > The postfix system will return back an email with subject "Undelivered Mail > Returned to Sender" No, ALL mail servers will do this if they cannot deliver mail they accepted. > But I don't want it send this message. Then do not accept mail you cannot deliver or don’t run a mail server. Swallowing undelivered mail without notifications is an evil best left to companies like Verizon (which has done this in the past).
Re: Hi.how to set up "bounce unix - - n - 0 bounce" by using Postconf
On 25.09.19 23:24, feier8097 wrote: thanks for your help. But I want to change "bounce" to "discard". Beacause When user sent mail to accunt without exist on the server. put: smtpd_reject_unlisted_recipient=yes smtpd_reject_unlisted_sender=yes into main.cf. This way your users will NOT send accounts that to not exist. you really should follow Victor's advice, so you next problem won't be "my mail is being lost" or similar. -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. "The box said 'Requires Windows 95 or better', so I bought a Macintosh".
Re: Hi.how to set up "bounce unix - - n - 0 bounce" by using Postconf
I REPEAT. Setting the bounce(8) internal service to be handled by a fundamentally incompatible discard(8) delivery agent is wrong, and I hope and expect that nobody on this list will give you any help to misconfigure your system in this way. > On Sep 26, 2019, at 2:46 AM, feier8097 wrote: > > Thanks for your suggest again. "bounce unix - - n - 0 discard" is fit for my > own system. I have trouble with how to set it by "postconf.." not "vi > /etc/...". or disable the NDR responses from the system. If on other hand you want actual help to avoid unwanted bounces, you'd be wise to stop asking about how to damage your master.cf file and instead describe how the mail that ultimately bounces enters your system (from authenticated users outbound to remote addresses or external senders inbound to local, but non-existent addresses). You should also provide some configuration information, as described in http://www.postfix.org/DEBUG_README.html#mail -- Viktor.
Re: Hi.how to set up "bounce unix - - n - 0 bounce" by using Postconf
Thanks for your suggest again. "bounce unix - - n - 0 discard" is fit for my own system. I have trouble with how to set it by "postconf.." not "vi /etc/...". or disable the NDR responses from the system. -- Sent from: http://postfix.1071664.n5.nabble.com/Postfix-Users-f2.html
Re: Hi.how to set up "bounce unix - - n - 0 bounce" by using Postconf
> On Sep 26, 2019, at 2:24 AM, feier8097 wrote: > > thanks for your help. But I want to change "bounce" to "discard". You DO NOT want to change the master.cf entry. > Because > When user sent mail to accunt without exist on the server. The postfix > system will return back an email with subject "Undelivered Mail Returned to > Sender" Automatic. Don't accept messages to invalid recipients, implement recipient validation. Then you can run a properly working MTA, that does not (attempt to) throw away legitimate bounce messages. > But I don't want it send this message. That's solving the wrong problem, instead reject mail to non-existent recipients before it enters your queue. > So I searched > google and found just set "bounce unix - - n - 0 bounce" to "bounce unix - - > n - 0 discard" can solve this problem. The ignoramus who suggested that solution must be ignored. There's plenty of bad advice on the Internet. > I've check it being Correct. It is not. > And I have mounts of multi-instances, I want to change the parameter by like > "postconf ... ..." or something else,But not by "vi -c /etc/postfix...". Postfix supports programmatic changes to main.cf and master.cf, but first you have to know what you're doing. Cargo-culting a misguided how-to will not solve your problem... -- Viktor.
Re: Hi.how to set up "bounce unix - - n - 0 bounce" by using Postconf
thanks for your help. But I want to change "bounce" to "discard". Beacause When user sent mail to accunt without exist on the server. The postfix system will return back an email with subject "Undelivered Mail Returned to Sender" Automatic. But I don't want it send this message. So I searched google and found just set "bounce unix - - n - 0 bounce" to "bounce unix - - n - 0 discard" can solve this problem.I've check it being Correct. And I have mounts of multi-instances, I want to change the parameter by like "postconf ... ..." or something else,But not by "vi -c /etc/postfix...". -- Sent from: http://postfix.1071664.n5.nabble.com/Postfix-Users-f2.html
Re: Hi.how to set up "bounce unix - - n - 0 bounce" by using Postconf
On Tue, Sep 24, 2019 at 08:06:48PM -0700, feier8097 wrote:
> I have searched for many documents. But can not set "bounce unix - - n - 0
> bounce" in master.cf by using Postconf correcttly.
The services:
bounceunix - - n - 0 bounce
defer unix - - n - 0 bounce
trace unix - - n - 0 bounce
are internal Postfix services, and are NOT delivery agents. They
are needed for the proper operation of Postfix, and you're not
expected to (you're expect not to) change these.
> What is the command of setting "bounce unix - - n - 0 bounce" to "bounce
> unix - - n - 0 discard" By Postconf?
On the other hand, "discard" is a delivery agent, and so cannot
replace the "bounce" service or vice versa. The Postfix delivery
agents are:
smtp unix - - n - - smtp
relay unix - - n - - smtp
# -o smtp_helo_timeout=5 -o smtp_connect_timeout=5
error unix - - n - - error
retry unix - - n - - error
discard unix - - n - - discard
local unix - n n - - local
virtual unix - n n - - virtual
lmtp unix - - n - - lmtp
somepipe unix - n n - - pipe
flags=DRhu user=luser argv=/usr/bin/somepipe -- ${recipient}
Handled via local(8), virtual(8), smtp(8), lmtp(8), pipe(8), error(8)
and discard(8).
--
Viktor.
Hi.how to set up "bounce unix - - n - 0 bounce" by using Postconf
I have searched for many documents. But can not set "bounce unix - - n - 0 bounce" in master.cf by using Postconf correcttly. What is the command of setting "bounce unix - - n - 0 bounce" to "bounce unix - - n - 0 discard" By Postconf? thank you. -- Sent from: http://postfix.1071664.n5.nabble.com/Postfix-Users-f2.html
