Re: [PLUG] Clone a Remote Server to Another Remote Server

["N. Albert via plug" <plug@lists.phillylinux.org>]

On 8/28/2024 3:04 PM, JP Vossen via plug wrote:
> On 8/28/24 10:36 AM, Casey Bralla via plug wrote:
> > I've been using Ionos servers for my Postfix eMail server.  Been 
> > happy with them since 2018, and my Debian 9 server is still going 
> > strong.
>
> > I'm now trying to rebuild my old Postfix system on a new Debian 11 
> > system, but I'm runnign out of time and looking for a faster 
> > quick-fix to keep me running.
>
> Sounds like you need _Run Your Own Mail Server_ by Michael Lucas, but 
> it's not clear when that will be GA: https://mwl.io/archives/23748. ; 
> Real Soon Now, but probably not by months end. 

I hadn't heard of this book before, but I looked at the bio and found 
this amusing:

"Setting up the email server with Postfix, Dovecot, and rspamd is the 
easy part.

The protocols that support email? Those are hard. SPF. DKIM. DMARC. BIMI 
and MTA-TLS and TLS-RPT. DNS standards that apply to nothing else on the 
modern Internet. Block lists. Graylisting.  Email is a protocol unlike 
any other, yet among our most essential."

Personally, I could not disagree more with this. Like most people, I ran 
Postfix for years, mainly for simple relay tasks, and never found it 
trivial or easy to configure it to do what I wanted to. In some cases, 
configuration oversight had even present security issues. On the other 
hand, I find SPF, DKIM, DMARC, etc all rather simple to understand, as a 
person that likes understanding the details of how things work under the 
hood, and a lot of protocols like SMTP are much easier to understand and 
get your hands dirty with, even with all their extensions and nuances, 
than projects like postfix that aim to do everything under the sun with 
arcane configuration options that are difficult to use properly.

Shortly after I started writing my own BBS software, I realized it would 
be easier to dump Postfix and write my own mail server from scratch 
catered to my needs which I could more easily extend for additional 
functionality over time. I've been slowly migrating everything there to 
the point where all my email will eventually be self-hosted and I have 
zero regrets. I've often found the easiest system to manage is the one 
you can understand exactly how it works. If there is a problem, you 
don't need to depend on anyone else to fix it (I suppose with the caveat 
that you *can't* depend on anyone else to fix it).
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