Date: Sun, 28 Feb 2021 13:23:53 -0600 From: Valeri Galtsev <galtsev@kicp.uchicago.edu> To: "Russell L. Carter" <rcarter@pinyon.org> Cc: freebsd-questions@freebsd.org Subject: Re: Somewhat OT: Mail Relay Services Message-ID: <808052CB-FE91-4B5C-81ED-B74E5D0CEBB7@kicp.uchicago.edu> In-Reply-To: <b3b3fce5-ae71-047e-33f6-4f0483f7e759@pinyon.org> References: <877d08ef-d533-69f6-4c44-f2cbbe39ba31@tundraware.com> <b3b3fce5-ae71-047e-33f6-4f0483f7e759@pinyon.org>
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> On Feb 28, 2021, at 1:17 PM, Russell L. Carter <rcarter@pinyon.org> = wrote: >=20 > On 2/28/21 11:01 AM, Tim Daneliuk wrote: >> For many years, I've run a mail system built on FreeBSD for my own = small business. >> It's been as flawless as any mail server ever can be, requiring only = periodic >> maintenance and updates. >> The primary server runs in a 3rd party cloud environment. We are = starting to >> see parts of their network blacklisted by the various UCE blackholing = services. >> Unfortunately, they don't just blackhole a single IP, but an entire = subnet at >> a time, which catches us in the mix. >> The big mail hubs like outlook.com no longer have a mechanism for = removing the block >> for a single ip and kick you back to your ISP or hosting provider for = resolution. >> So ... we are contemplating using a smart host to do all our outbound = email for us >> via relays from our own mail servers. Presumably, such a smart host = would be better >> equipped to deal with bad blacklisting and delivery issues. >> So ... does anyone have experience or recommendations as to who would = be a good >> provider for a low volume, small business mail relay? >=20 > I'm all ears and appreciative of any pointers on this topic as well. > I have been running my own mail servers for two domains for > 20 = years. > The volume is so low and I try to stay "mainstream" in configuration > so I've never been blacklisted (that I know about, I watch). However, > my current last mile ISP is centurylink, from whom I lease 5 static > ips. And they just up and deleted my ptr records for over a month, > and didn't fix it, even after hours on chat, until I shamed them with > an analysis on dslreports, showing how their tech support was flat > out stupid or lying. It happens, but it made terrified of being > reliant on them. So I've decided to put my dovecot+rspamd+postfix > system up on some popular VPS. I am leaning toward vultr, haven't > had any problems with them for years, but I've never needed to > ask them to open port 25, and they require you to ask. >=20 > But I hadn't thought that my co-tenants might cause me a problem with > blacklisted subnets! >=20 > Anybody know of a successful strategy here? Maintaining your own > servers can occasionally be a pain, but I really like managing my > own servers exactly how I want them. And in addition, as someone mentioned good decade ago, it will have to = be subpoena served to you to look into your emails, whereas with email = provider, subpoena will be served to your provider. So, with your own = server you at least will know about this happening. But I do not have my own server (not counting ones I maintain for the = Department at my job place). Valeri > Thanks, > Russell >=20 >=20 >=20 >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to = "freebsd-questions-unsubscribe@freebsd.org" >=20 > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to = "freebsd-questions-unsubscribe@freebsd.org"
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