I STRONGLY suggest that you either SWIP or create a 'rwhois' service for
that IP range, so it CLEARLY shows that the IP(s) are related to your
email services..
inetnum: 145.253.0.0 - 145.254.255.255
netname: DE-ARCOR-20000314
country: DE
org: ORG-MAT1-RIPE
admin-c: ANOC1-RIPE
admin-c: FW332-RIPE
tech-c: ANOC1-RIPE
tech-c: FW332-RIPE
status: ALLOCATED PA
mnt-by: RIPE-NCC-HM-MNT
mnt-by: ARCOR-MNT
mnt-lower: ARCOR-MNT
mnt-routes: ARCOR-MNT
created: 1970-01-01T00:00:00Z
last-modified: 2016-09-02T06:24:48Z
source: RIPE # Filtered
Otherwise, it might be assumed that the traffic is similar across the range.
host 145.253.228.160
Host 160.228.253.145.in-addr.arpa. not found: 3(NXDOMAIN)
You should probably put PTR records on these IP(s) as early as
possible.. You 'might' want to make those IP(s) on a /28 boundary for
simplicity for industry folks who might like to 'give you a little trust'
On 2020-11-26 5:01 a.m., Tobias Herkula via mailop wrote:
A Friend of mine is handling SMTP Traffic for Vodafone Germany and wants to
give a heads up here about a bigger change, he was not able to join Mailop so
I'm citing him:
Hello everyone,
we are in the process of moving the e-mail service of Vodafone Germany to
another platform which will be run in a Vodafone data center (more
precisely: e-shelter). We want to gradually increase the
SMTP-Submit-Traffic over the next 2 weeks using the new IPs. In total we
will send a few million mails daily over the new IPs.
Therefore, can you give a little bit of trust to the following two /29er
networks (or alternatively the 6 IPs of our MTA clusters)?
ip4:145.253.239.128/29
- 145.253.239.132
- 145.253.239.133
- 145.253.239.134
ip4:145.253.228.160/29
- 145.253.228.164
- 145.253.228.165
- 145.253.228.166
These two /29 networks are already configured in the SPF records of the
following domains:
- arcor.de
- arcormail.de
- germanynet.de
- gno.de
- mail.isis.de
- nexgo.de
- nvvonline.de
- online-club.de
- otelo-online.de
- otelo-web.de
- rp-plus.de
- vodafone.de
- vodafonemail.de
See for example the SPF Record of spf.vodafonemail.de
v=spf1 ip4:2.207.150.227/27 ip4:2.207.151.33/27 ip4:145.253.228.160/29 ip4:145.253.239.128/29 ip4:31.25.48.0/24 ~all
Merci in advance and best regards from Ahaus/Germany
Jochen Meyer
mediaBEAM GmbH
Erhardstraße 3
D-48683 Ahaus
Phone +49 2561 695-111
Mobile +49 179 1091403
Fax +49 2561 695-0111
mailto:jochen.me...@mediabeam.com
http://www.mediabeam.com
HRB 3265 Amtsgericht Coesfeld
UST-ID DE 204 581 685
Geschäftsführer Jochen Meyer, Markus Schulte
Kind regards,
/ Tobias Herkula
Manager Detection Anti Spam
Cyren (Berlin)
_______________________________________________
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop
--
"Catch the Magic of Linux..."
------------------------------------------------------------------------
Michael Peddemors, President/CEO LinuxMagic Inc.
Visit us at http://www.linuxmagic.com @linuxmagic
A Wizard IT Company - For More Info http://www.wizard.ca
"LinuxMagic" a Registered TradeMark of Wizard Tower TechnoServices Ltd.
------------------------------------------------------------------------
604-682-0300 Beautiful British Columbia, Canada
This email and any electronic data contained are confidential and intended
solely for the use of the individual or entity to which they are addressed.
Please note that any views or opinions presented in this email are solely
those of the author and are not intended to represent those of the company.
_______________________________________________
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop
