What ISP specifically bans Digital Ocean? What you need is some other email account, say proton, to start the dialog with the ISP that bans your Digital Ocean account. Or you look for some online form or forum. I had this problem with SBC (AT&T) and eventually got whitelisted by IP address. I moved the droplet once and had to get whitelisted again.
I do email all the time with users on Comcast, Cox, and Google. I have SPF and DKIM, so I am very traceable. It is important not to look like a spammer. I can say with 100% foot stomping fist pounding on the table certainty that using hosted services is far worse than a VPS. You share your IP with enough accounts that eventually one will get you on a banned list. If you want to spend some money, Google can host email using your domain. If you don't have a lot of users, it isn't that expensive. Something like $5 per user. The service is poorly named. Something like Google Apps. Fast Mail has some forwarding service, but you will fail SPF. I have to white users of their service. Original Message From: j...@stoffel.org Sent: February 21, 2019 6:08 AM To: li...@lazygranch.com Cc: postfix-users@postfix.org Subject: Re: How to protect against compromised email account password >>>>> "Gary" == Gary <li...@lazygranch.com> writes: Gary> Number 4 is immensely useful. When I had a hosted service, I got hacked from someone in Morocco via a Round Cube exploit that wasn't patched. (My PayPal account subsequently hacked, though I had the account suspended.) Gary> I saw two problems. One, I only use mail clients. Browsers leak. Two, I don't even have a passport, so sending mail from foreign countries isn't something I need. My hosting provider was having none of my ideas of restricting access, so I got a cloud account and did my own hosting. Gary> I use the firewall to block all email ports except 25 from foreign countries. In addition, I block datacenters except my own IPs. Ip2location can provide a country by county list of the IP space for free. Gary> As a Digital Ocean customer, I know I'm am hanging out with a Gary> small but active number of lowlifes. That is the nature of a Gary> business model where you pay for a server and you can do Gary> whatever you want until you get caught. Unfortunately, some big ISPs have now blocked all Digital Ocean IP Blocks, and wont' accept email, even though my domain is locked down, doesn't spam, etc. They took the big hammer approach. Which sucks for me. So the question becomes how do I setup a reasonably cost effective personal email domain without it getting banned?
