> thats what the original article is running into, it doesn't matter if you've been delivering off the same IP for years if you're only sending small amounts of traffic
That suggests a simple solution to the problem that can be done on the gmail side: for any small mail server (to pull a number out of my behind, say less than <200 emails a month to any @gmail address for the last 12 months), white list them if they satisfy the rest of the usual requirements.
Even if someone attempts to game the system and creates a number of servers, for an effective spam campaign it means a large number of servers, costs go up.
It might be worth experimenting with "abusing" this behaviour to put your small server on the Gmail whitelist. Start sending a large number of generated emails to a @gmail.com mailbox, log in and ensure none of it ends up in spam (ideally automate that too :), and there we are. Anyone have any idea how many emails that is? :)
IP churn is a huge problem with email that everyone has to fight, these are the emails you’re getting from like list sellers and the like. And you don’t have to even have to spin up new hardware or vms, you can be in something like aws where you’re attaching new network interfaces, go and do your damage, spin it down and up goes the next one. This actively happens all of the time right now and it happens because you can profitably do it.
That suggests a simple solution to the problem that can be done on the gmail side: for any small mail server (to pull a number out of my behind, say less than <200 emails a month to any @gmail address for the last 12 months), white list them if they satisfy the rest of the usual requirements.
Even if someone attempts to game the system and creates a number of servers, for an effective spam campaign it means a large number of servers, costs go up.
It might be worth experimenting with "abusing" this behaviour to put your small server on the Gmail whitelist. Start sending a large number of generated emails to a @gmail.com mailbox, log in and ensure none of it ends up in spam (ideally automate that too :), and there we are. Anyone have any idea how many emails that is? :)