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I run my personal mailserver on a DigitalOcean VPS, but I wouldn't recommend it. I've never had blacklisting issues and email works fine over IPv4, but outbound
by techwolf 8y ago
I run my personal mailserver on a DigitalOcean VPS, but I wouldn't recommend it. I've never had blacklisting issues and email works fine over IPv4, but outbound connections on all mail ports (25, 109, 110, 143, 465, 587, 995; not 993, oddly) are silently dropped over IPv6. They assign each host a IPv6 /124, instead of a /64 or better like other providers, so they block outbound SMTP for spam prevention. The other blocked ports aren't documented and I've had a support ticket open since November about getting them unblocked that looks like it won't be resolved anytime soon.
DO has been great for everything else I hosted there, but they're a bad choice for a mailserver.
- oblib 8y agoI can't say I'd recommend DO for an email server either. I wasn't blacklisted per se, I was blocked before I even sent any email and needed to be whitelisted. I won't say DO is a bad choice for a mailserver, nor a good one. I just did a quick search to see if that's changed in the past few years and came across "Helm", but that's not really a "good" option either. The real problem is there is no "good" choice for a dedicated mailserver or service provider.