Nate, It depends mostly on how your system is setup.
If you are wanting to "replace" the current address on the current system with the new one then ramping up\down your usage won't be possible. If you are migrating from one server to another on a new IP then it is usually easiest to do that by domain. In my environment I am running a set of edge spam\mail servers that handle all incoming and outgoing mail. Those servers then maintain a table of where to send the messages to the actual mail servers that the customers use. This allows me to very easily switch things around should I have an exchanger go offline or an IP get a bad reputation. I can simply retire that address or turn the server off and not miss a beat. It also allows me to spread my exchangers around the internet to ensure better reliability. DJ Anderson Techwebhosting From: "mailop" <mailop@mailop.org> To: "mailop" <mailop@mailop.org> Sent: Thursday, July 7, 2022 3:45:47 PM Subject: Re: [mailop] [EXTERNAL] Re: Moving email server to new IP Are you talking moving to the new IP by mailbox, by domain, or some other metric? On 7/7/2022 2:04 PM, Jeff Dellapina via mailop wrote: Russell, As DJ mentioned… update your DNS records but include both platforms. Segment your data into most active, mid active, some active and not active. Focus sending to most and mid active off the new IP As you mentioned…. Send 10% of your most engaged recipients off the new platform and 90% off the old platform. After a day or two.. move 20% over to the new platform. Lather rinse and repeat until all email goes new and none goes old. Delete the DNS records for the old platform. Thanks, Jeff From: mailop [ mailto:mailop-boun...@mailop.org | <mailop-boun...@mailop.org> ] On Behalf Of Russell Clemings via mailop Sent: Thursday, July 7, 2022 2:19 PM To: mailop [ mailto:mailop@mailop.org | <mailop@mailop.org> ] Subject: [EXTERNAL] Re: [mailop] Moving email server to new IP How exactly does one ramp up the volume when migrating to a new mail server? I once asked an ISP and never got a real answer. I couldn't see how to send 10% to the new server today, 20% tomorrow, etc. On Thu, Jul 7, 2022, 11:14 AM DJ Anderson via mailop < [ mailto:mailop@mailop.org | mailop@mailop.org ] > wrote: BQ_BEGIN Before putting it into service I would check it against the known blacklists. If its clear there and you have your rDNS,SPF,DMARC,DKIM records setup correctly you should be safe. That being said I usually monitor the logs of the newly online server\address to ensure it isn't getting blocked. My other recommendation would be to slowly ramp up message volume rather than just going from 0 to 10k messages a day if you can. That should help with the reputation as well. For checking black lists I like to use [ https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmxtoolbox.com%2Fblacklists.aspx&data=05%7C01%7Cjdellapina%40microsoft.com%7C4d57fb54ed3a48c5630208da6049a450%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637928166673653439%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=HsLENmTt6jJVSCGiXtpBnRiatFblyE%2FsjXpq40EyFk4%3D&reserved=0 | ] [ https://mxtoolbox.com/blacklists.aspx | https://mxtoolbox.com/blacklists.aspx ] DJ Anderson Techwebhosting ----- Original Message ----- From: "Nate Burke via mailop" < [ mailto:mailop@mailop.org ] [ mailto:mailop@mailop.org | mailop@mailop.org ] > To: [ mailto:mailop@mailop.org | mailop@mailop.org ] Sent: Thursday, July 7, 2022 1:41:32 PM Subject: [mailop] Moving email server to new IP 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. Thanks, Nate _______________________________________________ mailop mailing list [ mailto:mailop@mailop.org | mailop@mailop.org ] [ https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flist.mailop.org%2Flistinfo%2Fmailop&data=05%7C01%7Cjdellapina%40microsoft.com%7C4d57fb54ed3a48c5630208da6049a450%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637928166673653439%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=3b9gAgZIWj8ODrYNPyNPXjS5cyTFKH%2FsDHogtAisxHo%3D&reserved=0 | https://list.mailop.org/listinfo/mailop ] _______________________________________________ mailop mailing list [ mailto:mailop@mailop.org | mailop@mailop.org ] [ https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flist.mailop.org%2Flistinfo%2Fmailop&data=05%7C01%7Cjdellapina%40microsoft.com%7C4d57fb54ed3a48c5630208da6049a450%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637928166673653439%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=3b9gAgZIWj8ODrYNPyNPXjS5cyTFKH%2FsDHogtAisxHo%3D&reserved=0 | https://list.mailop.org/listinfo/mailop ] _______________________________________________ mailop mailing list [ mailto:mailop@mailop.org | mailop@mailop.org ] [ https://list.mailop.org/listinfo/mailop | https://list.mailop.org/listinfo/mailop ] BQ_END _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
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