All of this apart from the relationships with ESPs is relatively easy to do if you're a competent sysadmin.
As far as the ESPs are concerned, all of them appear to accept our emails just fine, except for Hotmail. We've largely given up on Hotmail, but then everyone who uses hotmail seems to be aware that it marks everything as spam and so they check their spam box as often as their inbox, from the looks of it.
It's a nice convincing argument. It just hasn't borne out in practice for us. Email is critical to us, and it gets delivered just fine the vast majority of the time. We've had about 2 cases in 3 years where we needed to intervene manually to talk to some kind of ESP to get us unblocked, because they'd randomly decided to blacklist our IP. That's not worth $80/m.
The trouble with hotmail is they sometimes just blackhole what they classify to be spam, instead of filtering it into the Junk folder. It doesn't even bounce, it just disappears.
Really? I've come across loads of people who have had the disappearing email problem with hotmail (including myself on a couple of systems), but this is the first time I've heared of anyone having it with Gmail.
As far as the ESPs are concerned, all of them appear to accept our emails just fine, except for Hotmail. We've largely given up on Hotmail, but then everyone who uses hotmail seems to be aware that it marks everything as spam and so they check their spam box as often as their inbox, from the looks of it.
It's a nice convincing argument. It just hasn't borne out in practice for us. Email is critical to us, and it gets delivered just fine the vast majority of the time. We've had about 2 cases in 3 years where we needed to intervene manually to talk to some kind of ESP to get us unblocked, because they'd randomly decided to blacklist our IP. That's not worth $80/m.