Hi Richard,
Op 12-04-2022 om 14:07 schreef Richard Rasker:
Op 11-04-22 om 18:34 schreef Paul van der Vlis:
Hi Richard, ...
Eventually you could use my mailserver as a relayhost.
That is a very friendly offer, but if I do, that would of course only
be temporary, so that I can send e-mail
Dnia 12.04.2022 o godz. 15:03:40 Richard Rasker pisze:
>
> Sorry, I wasn't being clear here. What I mean to ask is if (and how)
> using a mail relay for sending mail could solve the problem that at
> the receiving end, reverse DNS does not match the originating
> domain.
Reverse DNS doesn't have
Op 12-04-22 om 14:20 schreef Jaroslaw Rafa:
Dnia 12.04.2022 o godz. 14:07:13 Richard Rasker pisze:
But according to the information supplied, I should also be able to
use smtp.xs4all.nl as a relay host, see
https://www.xs4all.nl/eigenmailserver/ (in Dutch -- and I already
took care of the
On 2022-04-12 14:20, Jaroslaw Rafa wrote:
Probably not, because smtp.xs4all.nl has IP address 195.121.65.191, and
reverse DNS for 195.121.65.191 is 195-121-65-191.dc.kpn.net. So it is
also a
"generic" hostname which may cause some systems to reject mail sent
from
this address. The ISP has
On 2022-04-12 14:07, Richard Rasker wrote:
Op 11-04-22 om 18:34 schreef Paul van der Vlis:
Hi Richard, ...
But according to the information supplied, I should also be able to
use smtp.xs4all.nl as a relay host, see
https://www.xs4all.nl/eigenmailserver/ (in Dutch -- and I already took
care
Dnia 12.04.2022 o godz. 14:20:11 Jaroslaw Rafa pisze:
> Dnia 12.04.2022 o godz. 14:07:13 Richard Rasker pisze:
> >
> > But according to the information supplied, I should also be able to
> > use smtp.xs4all.nl as a relay host, see
> > https://www.xs4all.nl/eigenmailserver/ (in Dutch -- and I
Dnia 12.04.2022 o godz. 14:07:13 Richard Rasker pisze:
>
> But according to the information supplied, I should also be able to
> use smtp.xs4all.nl as a relay host, see
> https://www.xs4all.nl/eigenmailserver/ (in Dutch -- and I already
> took care of the Spamhaus delisting).
>
> Question: does
Op 11-04-22 om 18:34 schreef Paul van der Vlis:
Hi Richard,
...
Eventually you could use my mailserver as a relayhost.
That is a very friendly offer, but if I do, that would of course only
be temporary, so that I can send e-mail again, and I'd contact you in
advance.
You need a
Hi Richard,
Op 11-04-2022 om 18:20 schreef Richard Rasker:
Hi Paul,
Op 11-04-22 om 17:40 schreef Paul van der Vlis:
[snip]
Maybe switch to freedom.nl, they give you a good reverse DNS.
Also IPv6.
Thanks for the tip; I think that may be a good idea. They're a lot
cheaper as well than
On Mon, Apr 11, 2022 at 06:20:46PM +0200, Richard Rasker wrote:
> That is a very friendly offer, but if I do, that would of course only be
> temporary, so that I can send e-mail again, and I'd contact you in advance.
>
> Just to make sure: I guess I need to change my MX record for this to
>
Hi Paul,
Op 11-04-22 om 17:40 schreef Paul van der Vlis:
[snip]
Maybe switch to freedom.nl, they give you a good reverse DNS.
Also IPv6.
Thanks for the tip; I think that may be a good idea. They're a lot
cheaper as well than XS4All/KPN -- I think I'll contact them first thing
tomorrow
On 11.04.22 08:21, lists wrote:
FWIW my VPS only allows one reverse pointer. I host multiple domains so
only one reverse pointer will match. My mail does not get bounced for
that.
this is not about multiple PTRs records, this is about changing the PTR.
And before someone posts you can have
lists wrote:
FWIW my VPS only allows one reverse pointer. I host multiple domains so only
one reverse pointer will match. My mail does not get bounced for that.
And before someone posts you can have more than one reverse pointer per IP the
VPS (Digital Ocean) says it can't be done.
Multiple
Op 11-04-2022 om 17:19 schreef Paul van der Vlis:
Hi Richard and others,
Op 11-04-2022 om 16:52 schreef Richard Rasker:
#Set Username and Password
smtp_sasl_password_maps = static:Chosen-Username:Chosen-Password
What I use is this:
smtp_sasl_password_maps = hash:/etc/postfix/saslpasswd
Message
From: m...@junc.eu
Sent: April 11, 2022 7:43 AM
To: postfix-users@postfix.org
Subject: Re: Solving reverse DNS problem with Postfix configuration?
On 2022-04-11 15:38, Richard Rasker wrote:
> Could I solve this by setting smtp_helo_name in main.cf to
> 77-172-184-9.fixed.k
Hi Richard and others,
Op 11-04-2022 om 16:52 schreef Richard Rasker:
#Set Username and Password
smtp_sasl_password_maps = static:Chosen-Username:Chosen-Password
What I use is this:
smtp_sasl_password_maps = hash:/etc/postfix/saslpasswd
And in that file something like:
smtp_tls_security_level = encrypt
header_size_limit = 4096000
#Enable CA Certificates
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
When restarting Postfix, no mail at all seems to be getting through
any more -- and how should this solve the reverse DNS problem? Because
smtp.xs4all.nl has IP
= 4096000
#Enable CA Certificates
smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt
When restarting Postfix, no mail at all seems to be getting through
any more -- and how should this solve the reverse DNS problem? Because
smtp.xs4all.nl has IP address 195.121.65.191, but this IP address
again
tfix, no mail at all seems to be getting through any
more -- and how should this solve the reverse DNS problem? Because
smtp.xs4all.nl has IP address 195.121.65.191, but this IP address again
does not point back to smtp.xs4all.nl ...
I then tried the same with mx.kpnmail.nl -- which is a mail host o
Could I solve this by setting smtp_helo_name in main.cf to
77-172-184-9.fixed.kpn.net ?
Or is this a bad idea?
On 11.04.22 10:20, post...@ptld.com wrote:
Yes you can set the helo name to match but this wont have much effect.
Some servers are looking at domain -> IP -> domain which in your
On 2022-04-11 15:38, Richard Rasker wrote:
Could I solve this by setting smtp_helo_name in main.cf to
77-172-184-9.fixed.kpn.net ? Or is this a bad idea?
no this will not solve it, you have to talk to isp kindly ask for change
of ptr, if thay are unvilling it most cases not a problem to
> Could I solve this by setting smtp_helo_name in main.cf to
> 77-172-184-9.fixed.kpn.net ?
> Or is this a bad idea?
Yes you can set the helo name to match but this wont have much effect.
Some servers are looking at domain -> IP -> domain which in your case is:
mail.linetec.nl ->
On 11.04.22 15:38, Richard Rasker wrote:
I've been using Postfix for many years without significant problems.
However, due to a forced change in ISP, I can no longer have a correct
PTR record pointing to mail.linetec.nl, causing a lot of ISP's to
reject e-mail from my server.
Reverse DNS
Hello,
I've been using Postfix for many years without significant problems.
However, due to a forced change in ISP, I can no longer have a correct
PTR record pointing to mail.linetec.nl, causing a lot of ISP's to reject
e-mail from my server.
Reverse DNS for my IP address now points to the
Hello everybody i receive from only one host this error from a postfix
mail virtual host.
Remote server refused my email and said:
said: 421 Refused. Your reverse DNS entry does not resolve. (in
reply to RCPT TO command))
I made some test and this is the situation
if i make
On 3/1/2011 9:53 AM, Matteo Cazzador wrote:
Hello everybody i receive from only one host this error from a postfix
mail virtual host.
Remote server refused my email and said:
said: 421 Refused. Your reverse DNS entry does not resolve. (in
reply to RCPT TO command))
I made some
IP = 212.91.92.247
hostname mail.brunosrl.net
Thank's
Il 01/03/2011 15:55, Matt Hayes ha scritto:
On 3/1/2011 9:53 AM, Matteo Cazzador wrote:
Hello everybody i receive from only one host this error from a postfix
mail virtual host.
Remote server refused my email and said:
said: 421
* Matteo Cazzador mat...@netlite.it:
IP = 212.91.92.247
$ host 212.91.92.247
247.92.91.212.in-addr.arpa domain name pointer host-247-92.91-212.enter.it.
$ host host-247-92.91-212.enter.it
Host host-247-92.91-212.enter.it not found: 3(NXDOMAIN)
FAIL
hostname mail.brunosrl.net
$ host
Ok thank's but if my server will be a virtual mail server?
with same ip to serve different domain?
in this case how is possible to realize correct host IP?
Il 01/03/2011 16:06, Ralf Hildebrandt ha scritto:
* Matteo Cazzadormat...@netlite.it:
IP = 212.91.92.247
$ host 212.91.92.247
[ top-posting fixed, please do not do that ]
On Tue, Mar 01, 2011 at 04:12:13PM +0100, Matteo Cazzador wrote:
Il 01/03/2011 16:06, Ralf Hildebrandt ha scritto:
$ host 212.91.92.247
247.92.91.212.in-addr.arpa domain name pointer host-247-92.91-212.enter.it.
mail.brunosrl.net !=
On Behalf Of Matteo Cazzador
Ok thank's but if my server will be a virtual mail server?
with same ip to serve different domain?
in this case how is possible to realize correct host IP?
This is not the problem
if PTR = A = HELO
then you can send with thousands of virtual @Mailadresses
By
On 2011-03-01 Matteo Cazzador wrote:
Ok thank's but if my server will be a virtual mail server?
with same ip to serve different domain?
Then that other domain should use mail.brunosrl.net as its MX. Problem
solved.
And please don't top-post.
Regards
Ansgar Wiechers
--
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