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? My
impression is that it's less and less necessary in the age of
DMARC, SPF and DKIM.
Nothing else would be changing from the recipient's point of view
aside from the IP address (and network): the domain,
return-paths, dkim keys and selectors involved would all be the
same as they have been.
The new IP address doesn't seem to be on many public RBLs, and I
have contacted Microsoft to have it removed from their block
list.
Do many current sites require an IP's reputation to be
established gradually? (particularly Google) Would it just
greylist deliveries for a few hours, or fail worse than that?
The new host will be doing deliveries directly, not using SES.
Thanks,
--
Gerald Oskoboiny <ger...@w3.org>
http://www.w3.org/People/Gerald/
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