Isn't it about time that you became more transparent?
http://mcdlv.net
http://rsgc.net
http://mcsv.net
Might want to add a link to your companies contact, or abuse contacts on
those pages.. Even better, just use .mailchimp.com and be forthright..
And how does that naming convention align with usage?
Which ones are for transactional email?
Which ones are for shared email marketing?
Which ranges are for dedicated IPs?
And maybe break up your SWIP, to indicate which ranges are used for what
purposes?
NetRange: 148.105.0.0 - 148.105.255.255
CIDR: 148.105.0.0/16
NetName: RSG-DELIVERY
And reports are seeing an increase of poor quality spam and marketing
from your ranges of late..
On 2025-10-21 13:20, Matt Gilbert via mailop wrote:
Hi MailOps!
We wanted to let you know that Intuit Mailchimp will be adding new sending IPs
which were previously unused.
We've been sending from the following ranges historically:
148.105.8.0/21
198.2.128.0/18
205.201.128.0/20
We own all of 148.105.0.0/16 and will be utilizing more of those IPs moving
forward; mail volume will be ramped up gradually over time. For the near term,
these are the specific new CIDRs we expect to use. We'll send additional
notifications in advance of adding any additional ranges.
148.105.0.0/24
148.105.1.0/24
148.105.4.0/24
148.105.16.0/24
148.105.128.0/24
148.105.129.0/24
148.105.255.0/24
IP hostname/rDNS naming convention will be very similar to existing IPs.
Samples of existing hostnames:
- mail103.atl18.mcdlv.net
- mail105.atl111.rsgsv.net
- mail106.atl91.mcsv.net
Samples of new hostnames:
- mail45.use201ppd.mcdlv.net (staging/test MTA, should be very, very low volume)
- mail108.use2001.mcdlv.net
- mail22.usw2002.mcdlv.net
Our existing sending IP hostnames won't change, and no other changes to our
sending domains or authentication use are planned at this time.
———
Matt Gilbert
Senior Deliverability Engineer
Intuit Mailchimp
_______________________________________________
mailop mailing list
[email protected]
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 Reg. TradeMark of Wizard Tower TechnoServices Ltd.
------------------------------------------------------------------------
604-682-0300 Beautiful British Columbia, Canada
_______________________________________________
mailop mailing list
[email protected]
https://list.mailop.org/listinfo/mailop
