Joergen Lundman:
>
> Customers have asked if they can get the "Delivered-To" header in the case
> that their
> mail is sent onwards. But we do not use the regular .forward or "delivery"
> style, but
> rather query LDAP for "mailForwardingAddress" to send mail on.
>
> As in:
> virtual_mailbox_maps
Hi,
How can I reject connections from generic Forward Confirmed Reverse DNS
(FCrDNS) like “123-45-67-8.your.isp.com”.
For the most cases spamhaus is able to block it but with the cloud providers
with FCrDNS as follows not all of them are not blocked.
123-45-67-89.ip.linodeusercontent.com
ec2
>> I suppose there is probably nothing I can do about it?
>
> http://www.postfix.org/postconf.5.html#prepend_delivered_header
>
> currenly immplements (and detects loops) with delivery to "|command",
> /file/name, or !$HOME/.forward.
>
> Doing this also for virtual alias expansion would require
Jorgen Lundman:
> >> I suppose there is probably nothing I can do about it?
> >
> > http://www.postfix.org/postconf.5.html#prepend_delivered_header
> >
> > currenly immplements (and detects loops) with delivery to "|command",
> > /file/name, or !$HOME/.forward.
> >
> > Doing this also for virtu
> How can I reject connections from generic Forward Confirmed Reverse DNS
> (FCrDNS) like “123-45-67-8.your.isp.com”.
I do not know if there is an easier way but you could make a script using
check_policy_service or a milter to check if client name contains client IP.
However i wonder how compl
Root Servers / IPs at datacenters often also get a default RDNS in that style.
Greets,
Ludi
-Ursprüngliche Nachricht-
Von: owner-postfix-us...@postfix.org Im
Auftrag von post...@ptld.com
Gesendet: Donnerstag, 11. November 2021 14:56
An: postfix-users@postfix.org
Betreff: Re: How to
On 11.11.21 12:06, Togan Muftuoglu wrote:
>How can I reject connections from generic Forward Confirmed Reverse DNS
(FCrDNS) like “123-45-67-8.your.isp.com”.
For the most cases spamhaus is able to block it but with the cloud providers
with FCrDNS as follows not all of them are not blocked.
123-
> "Ludi" == Ludi Cree writes:
Ludi> Root Servers / IPs at datacenters often also get a default RDNS in that
Ludi> style. Greets, Ludi
Yes but if you own the domain you can ask the datacenters/cloud centers for
the RDNS and your helo will match your RDNS.
I am using AWS and it was done in a
> "ptld" == postfix writes:
>> How can I reject connections from generic Forward Confirmed Reverse DNS
>> (FCrDNS) like “123-45-67-8.your.isp.com”.
ptld> I do not know if there is an easier way but you could make a script using
ptld> check_policy_service or a milter to check if client name
> "Matus" == Matus UHLAR <- fantomas > writes:
Matus> you can check hostnames by using pcre map in
Matus> check_reverse_client_hostname_access. e.g. refuse regex
Matus> /(\d+)[.-](\d+)[.-](\d+)[.-](\d+)./ REJECT "generic DNS refused"
Matus> (trailing . should avoid matching IP Addresses)
On 2021-11-11 at 06:06:45 UTC-0500 (Thu, 11 Nov 2021 12:06:45 +0100)
Togan Muftuoglu
is rumored to have said:
Hi,
How can I reject connections from generic Forward Confirmed Reverse
DNS
(FCrDNS) like “123-45-67-8.your.isp.com”.
For the most cases spamhaus is able to block it but with the c
> "Matus" == Matus UHLAR <- fantomas > writes:
Matus> you can check hostnames by using pcre map in
Matus> check_reverse_client_hostname_access. e.g. refuse regex
Matus> /(\d+)[.-](\d+)[.-](\d+)[.-](\d+)./ REJECT "generic DNS refused"
Matus> (trailing . should avoid matching IP Addresses)
I see this error message in my mail.log file:
Nov 11 19:37:52 mail postfix/smtpd[5942]: warning: connect to Milter
service local:opendmarc/opendmarc.sock: No such file or directory
In the main.cf file, I have this line:
smtpd_milters = local:opendkim/opendkim.sock,local:opendmarc/opendmarc.sock,
lo
> "toganm" == Togan Muftuoglu writes:
> "Matus" == Matus UHLAR <- fantomas > writes:
Matus> you can check hostnames by using pcre map in
Matus> check_reverse_client_hostname_access. e.g. refuse regex
^
Matus> /(\d+)[.-](\d+)[.-](\d+)[.-](\d+)./
bobby:
> I see this error message in my mail.log file:
> Nov 11 19:37:52 mail postfix/smtpd[5942]: warning: connect to Milter
> service local:opendmarc/opendmarc.sock: No such file or directory
> In the main.cf file, I have this line:
> smtpd_milters = local:opendkim/opendkim.sock,local:opendmarc/o
On 2021-11-11 at 18:39:27 UTC-0500 (Thu, 11 Nov 2021 18:39:27 -0500)
bobby
is rumored to have said:
I see this error message in my mail.log file:
Nov 11 19:37:52 mail postfix/smtpd[5942]: warning: connect to Milter
service local:opendmarc/opendmarc.sock: No such file or directory
In the main.cf
On Thu, Nov 11, 2021 at 06:39:27PM -0500, bobby
wrote:
> I see this error message in my mail.log file:
> Nov 11 19:37:52 mail postfix/smtpd[5942]: warning: connect to Milter
> service local:opendmarc/opendmarc.sock: No such file or directory
> In the main.cf file, I have this line:
> smtpd_milte
On Thu, Nov 11, 2021 at 08:53:01PM +0100, Togan Muftuoglu wrote:
> Matus> /(\d+)[.-](\d+)[.-](\d+)[.-](\d+)./ REJECT "generic DNS refused"
>
> Matus> (trailing . should avoid matching IP Addresses)
That "." would need to be a "[.]" (or "\."), otherwise it'll match the
last digit, of a 2 or 3 dec
How to set up postfix to forward all my domain's email to gmail, and enable
authentication for SMTP outgoing messages?
Thank you.
On Sat, Nov 06, 2021 at 11:38:26PM -0500, Tyler Montney
wrote:
> Sorry for the long delay, wanted to do more research before posting it.
> I've replaced some real values, like myhostname, with generic ones.
I expect it's all fine or you would have had a response by now.
I'll have a look and mak
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