Re: [OT] Requesting feedback for VPS/Cloud for email (MX) server?
On Fri, Jul 31, 2020 at 10:08:09PM +0530, Didar Hossain wrote:
> On Fri, Jul 31, 2020 at 08:00:32AM -0400, Henning Follmann wrote:
> > On Fri, Jul 31, 2020 at 12:59:06PM +0530, Didar Hossain wrote:
> > > Hi,
> > >
> > > I want to host my own email on the cloud - I don't want to use G Suite or any
> > > other commercial service because I would like to have control over my email.
> > >
> > > I read around a little and it seems that most cloud providers block SMTP ports
> > > (25,587,465) from/t the internet as well sometimes from within their network.
> > > This poses a real problem for my deployment plans. Also, note that my design has
> > > separate MSA (submission), Mailstore (IMAP) and MTA (MX) nodes.
> > >
> > > I have shortlisted Digital Ocean and Linode for my use because both of
> > > datacenters in India. Is anyone using either of them for MX service?
> > >
> > > Any and all feedback is most welcome including specialist/small VPS providers
> > > who I can consider to host the MX node for my domain at least.
> > >
> >
> > I think all ISP should be fine. I sometime feel for a mailserver it is
> > more important to have a decent DNS provider than where you actually
> > run your mailserver. Because as a minimum you want to set up
> > SPF and DKIM.
> > Most ISP require to register an outgoing mail server with them. This
> > is also important that they set up a reverse ptr for your host.
>
> Cheap US$5 cloud instances are super attractive propositions for spammers who
> have absolutely abused these providers and made it difficult for legitimate
> senders to host on them.
>
> I have DNS, SPF, DKIM and DMARC under control. But, IP/ASN reputation is
> something that I have to factor in because a lot of my counter party receivers
> are on Office365 and G Suite who would block ill reputed networks.
>
> > One note on Digital Ocean. In my experience there is a lot of spam
> > originating from Digital Ocean. This potentially could cause you
> > some trouble. But this might be just my personal "feeling". I never
> > ran the numbers on ISP spam submission rates.
>
> True, I remember seeing some statistics about spam originating from them and
> that is why they have recently started blocking ports 25 throughout.
>
> > I currently use AWS for my mailservers. In the past I used
> > A1flexus for dedicated servers. They are on Long Island
> > and were very "linux friendly" at that time.
>
> Does your AWS instance receive and send over port 25?
>
Yes,
AWS requires to "register" your mailserver.
They allow for a small amount of out traffic without that, but
if you intend to use this as a proper mail server, you have
to tell them. I've never been on any dns-blocklist so far and I do check
regularly for all my server.
-H
--
Henning Follmann | hfollmann@itcfollmann.com
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