* Mark Fletcher <ma...@corp.groups.io> [2024-03-25 20:38-0700]
On Mon, Mar 25, 2024 at 4:30 PM Gerald Oskoboiny via mailop <
mailop@mailop.org> wrote:
We are planning to move the system that hosts our email
discussion lists from its old home where it has been for decades
to an EC2 instance on AWS. It does about 15k deliveries per day,
most of which go to gmail or google-hosted email systems.
Is it still necessary to warm up new IP addresses gradually
instead of going directly to this volume of deliveries?
Yes, it's still necessary to warm up IP addresses, at least in my current
experience. Our biggest problem has been with Microsoft, and their rate
limiting of new IP addresses. There are others that also rate limit new IP
addresses, but at least with them, you can generally find someone here on
mailop that can help.
When we first obtained the IP addresses for our email-sending
hosts on AWS we had an issue with deliveries to outlook.com and
hotmail.com getting refused, but I contacted the Outlook
deliverability support team who added mitigation for our IPs and
we have had no issues since.
We've never had a problem with Gmail/Google.
Thanks, that's very good to know.
--
Gerald Oskoboiny <ger...@w3.org>
http://www.w3.org/People/Gerald/
_______________________________________________
mailop mailing list
mailop@mailop.org
https://list.mailop.org/listinfo/mailop
