On 2022-07-07 10:41, Nate Burke via mailop wrote:
I've had a small multi-domain business mail server running on the same IP for the last 20 years, I need to change the IP from an address in a reassigned IP block, to my own ARIN block. Is IP reputation still a big deal, or are anti-spam measures now content/quantity based and the IP address isn't as important anymore. Can I just flip the IP and update my DNS/SPFs and be good.
IP Reputation is still going strong! Only so many IPs out there, but virtually unlimited domains and content patterns..
As long as your own ARIN block wasn't previously owned by a bad guy, you should have no problems, as long as everything is correctly configured.
Common gotcha? Having IPv6 enabled, and not addressing configuration for that. To keep it simpler, start with just IPv4, and then look at IPv6 later when you are ready..
For the record for others, you might like to include the ARIN numbering you intend to use, when asking questions like this. And of course, use a reputable upstream in your routing.
Oh, and you might like to get an IP reputation alerting tool active when you first start, eg like HetrixTools or MXToolBox
-- "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
