I've been meaning to write a follow up after I met some MailChip devs at a conference. They told me at MailChip they have to slowly spin up new servers, sending e-mail through them slowly so Google registers their new SMTP IPs.
The other thing they told me: MailChip owns a /A, and can therefore separately out their servers from even being remotely related to any spammy subnets (common problem on 'cloud' hosting).
I'm wondering if I heard/remember that correctly. I mean, a class A is huge and would be crazy expensive. I've been looking through websites on ASNs and am trying to figure out how to verify that info.
http://penguindreams.org/blog/how-google-and-microsoft-made-...
I've been meaning to write a follow up after I met some MailChip devs at a conference. They told me at MailChip they have to slowly spin up new servers, sending e-mail through them slowly so Google registers their new SMTP IPs.
The other thing they told me: MailChip owns a /A, and can therefore separately out their servers from even being remotely related to any spammy subnets (common problem on 'cloud' hosting).
I'm wondering if I heard/remember that correctly. I mean, a class A is huge and would be crazy expensive. I've been looking through websites on ASNs and am trying to figure out how to verify that info.