Στις 13/6/24 03:51, ο/η Jeff Peng via Postfix-users έγραψε:
3. use policyd-rate-limit to limit sending rate.
5. use policyd-spf to check sender IP's SPF and reject the failed one.
6. use opendmarc to check sender domain's DMARC and reject the failed one.
7. opendkim is also deployed for either i
On 2024-06-13 15:07, Dimitris via Postfix-users wrote:
Στις 13/6/24 03:51, ο/η Jeff Peng via Postfix-users έγραψε:
3. use policyd-rate-limit to limit sending rate.
5. use policyd-spf to check sender IP's SPF and reject the failed one.
6. use opendmarc to check sender domain's DMARC and reject t
On second consideration, if an *SQL "server_hosts" setting specifies
only one target (host or IP address), then Postfix has little to
lose if it pretends that the name is given twice, and retries once
immediately, especially of it turns off the logic to avoid a failed
*SQL server for 60 seconds.
T
A paranoid configuration could add:
smtpd_reject_unlisted_sender = yes
That is, do not send mail with a sender address that is known to
be invalid (the SMTP server would reject mail for the address with
"user unknown").
For more details (what is valid, why reject invalid senders) see
https:/
I’m 77. I’ve been retired for 10 years. Now I’m struggling trying to get
postfix working with Dovecot and Spamasassin on a CentOS 7 server. I manage a
small hobby domain for some friends (for free), and the changes in systems are
so dramatic that I feel I’m losing touch.
I read this doc to help
I trimmed a lot of my original message from this reply..
I figured out what was wrong. The spamassassin install didn’t create the spamd
accont. It’s working fine now.
I would appreciate if if some of you pros could look over my postconf and
advise me on any settings that I need to alter or dele
Paul Schmehl via Postfix-users:
> I'm 77. I've been retired for 10 years. Now I'm struggling trying
> to get postfix working with Dovecot and Spamasassin on a CentOS 7
> server. I manage a small hobby domain for some friends (for free),
> and the changes in systems are so dramatic that I feel I'm l
Wietse Venema via Postfix-users:
> A paranoid configuration could add:
>
> smtpd_reject_unlisted_sender = yes
>
> That is, do not send mail with a sender address that is known to
> be invalid (the SMTP server would reject mail for the address with
> "user unknown").
>
> For more details (wha
See inline comments.
Paul Schmehl
paul.schm...@gmail.com
> On Jun 13, 2024, at 3:12 PM, Wietse Venema via Postfix-users
> wrote:
>
> Paul Schmehl via Postfix-users:
>> I'm 77. I've been retired for 10 years. Now I'm struggling trying
>> to get postfix working with Dovecot and Spamasassin on
Would this respect recipient_delimiter, i.e. "tagged" sender addresses?
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Hello Wietse,
I have added this line:
smtpd_reject_unlisted_sender = yes
into main.cf.
May I ask, this option is for submission request, or for MX request?
Thanks.
On 2024-06-14 04:14, Wietse Venema via Postfix-users wrote:
Wietse Venema via Postfix-users:
A paranoid configuration could
Jeff Peng via Postfix-users:
> Hello Wietse,
>
> I have added this line:
> smtpd_reject_unlisted_sender = yes
>
> into main.cf.
> May I ask, this option is for submission request, or for MX request?
All services that use smtpd.
Wietse
> On 2024-06-14 04:14, Wietse Venema via Postf
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