CentOS - Jul 2018 - Which is better? Microsoft Exchange 2016 or Linux-based SMTP Servers?

>
> > Still a lot better than trying to run your own hodge-podge of
nightmares
> > on Linux.
>
> Beg pardon? Did I make a mistake on the email address? I thought this went
> to the CentOS general discussion list.
>
I specifically meant setting up and running email services on linux is not
for the feint of heart and delivers little real value considering the
plethora of free and commercial email services available.

On 07/18/2018 10:24 AM, Andrew Holway wrote:
>>
>>> Still a lot better than trying to run your own hodge-podge of
nightmares
>>> on Linux.
>>
>> Beg pardon? Did I make a mistake on the email address? I thought this
went
>> to the CentOS general discussion list.
>>
>
> I specifically meant setting up and running email services on linux is not
> for the feint of heart and delivers little real value considering the
> plethora of free and commercial email services available.
I would disagree.

Postfix and Dovecot are both very well documented.

Running the server yourself protects your users from content scanning by 
the companies that profit from tracking users.

And running itself lets you run DANE for SMTP which makes MITM a lot 
more difficult when the other server you are talking to supports DANE 
for SMTP.

The major e-mail services do not offer that.

Sure it is more work, but it isn't that difficult to get it right.

On 07/18/18 12:24, Andrew Holway wrote:
>>
>>> Still a lot better than trying to run your own hodge-podge of
nightmares
>>> on Linux.
>>
>> Beg pardon? Did I make a mistake on the email address? I thought this
went
>> to the CentOS general discussion list.
>>
> 
> I specifically meant setting up and running email services on linux is not
> for the feint of heart and delivers little real value considering the
> plethora of free and commercial email services available.
Andrew, you should understand that you are talking to experts in Linux 
here. And even I (and I'm not considering myself an expert in Linux) 
have no trouble to set up mail server on Linux (with all blows and 
whistles like spam/virus filtering, etc).

So, Mark meant to say your posts are offensive to Experts on this list.

Please, take a note of it.

With respect,

Valeri

-- 
++++++++++++++++++++++++++++++++++++++++
Valeri Galtsev
Sr System Administrator
Department of Astronomy and Astrophysics
Kavli Institute for Cosmological Physics
University of Chicago
Phone: 773-702-4247
++++++++++++++++++++++++++++++++++++++++

Andrew Holway wrote:
>>> Still a lot better than trying to run your own hodge-podge of
>>> nightmares on Linux.
>>
>> Beg pardon? Did I make a mistake on the email address? I thought this
>> went to the CentOS general discussion list.
>
> I specifically meant setting up and running email services on linux is
> not for the feint of heart and delivers little real value considering the
> plethora of free and commercial email services available.
So, you'd say a company should use outside email? I would very strongly
suggest that's a BAD idea. For example, when M$ sucked all our local
Exchange accounts to their cloud, I understand (I'm not in that group)
that this was a one-way deal. From a friend, who's a consultant, he was
dealing with a client who'd let M$ do that when they went to Win10, and
trying to get the email down for backups, etc, was a nightmare.

      mark

> Andrew, you should understand that you are talking to experts in Linux
> here.
>
No, i was talking to the OP who is seemingly not an expert. Advising those
who not competent that they can set up and run their own mailserver is
probably negligent.

Whipping up Exim and Dovecot for your own private email server is one
thing. Setting up for an organisation is a completely different story.
Mailservers are extremely hard to do well and a job for a specialists. Just
making mail deliverable requires specialist knowledge and keeping an
up-to-date and effective spam filter is near impossible nowadays.

>
> So, you'd say a company should use outside email? I would very strongly
> suggest that's a BAD idea. For example, when M$ sucked all our local
> Exchange accounts to their cloud, I understand (I'm not in that group)
> that this was a one-way deal. From a friend, who's a consultant, he was
> dealing with a client who'd let M$ do that when they went to Win10, and
> trying to get the email down for backups, etc, was a nightmare.
>
It depends if the company has a sufficient size to support a production,
mission critical email service. How many engineers to you need to ensure a
proper support rotation? I work mainly in the SME space and haven't seen
self hosted email in over 5 years.

I will admit that the screech of the cloud brigade is often loud and
incoherent but you have to choose your battles. Email is a bitch. It seems,
from a techie point of view, the problem with Microsoft is that they are
forcing an all or nothing approach. If you take Office365 then you must
take the Azure Exchange also which means the core infra guys are pretty
much left high and dry, reduced to helping people install adobe acrobat on
the new Windows10.

I empathise. I've worked as an infrastructure admin and "Devops"
engineer
for over 10 years and now my role has been automated away by Kubernetes.
Change is hard.

On 07/18/2018 12:33 PM, Valeri Galtsev wrote:
> 
> 
> On 07/18/18 12:24, Andrew Holway wrote:
>>>
>>>> Still a lot better than trying to run your own hodge-podge of
>>>> nightmares
>>>> on Linux.
>>>
>>> Beg pardon? Did I make a mistake on the email address? I thought
this
>>> went
>>> to the CentOS general discussion list.
>>>
>>
>> I specifically meant setting up and running email services on linux is
>> not
>> for the feint of heart and delivers little real value considering the
>> plethora of free and commercial email services available.
> 
> Andrew, you should understand that you are talking to experts in Linux
> here. And even I (and I'm not considering myself an expert in Linux)
> have no trouble to set up mail server on Linux (with all blows and
> whistles like spam/virus filtering, etc).
> 
> So, Mark meant to say your posts are offensive to Experts on this list.
> 
> Please, take a note of it.
> 
So, I don't think anyone can call me a 'non linux' guy :)

But are you guys really telling you think the calendaring / scheduling
for individual users and the main corporate account, etc. .. are working
well enough with any Linux solution.

I have researched this very recently and I have not found a solution
that works even reasonably well.

Red Hat has even shifted their calendars to Google .. does anyone think
if an enterprise calendar that really worked was out there they would
not be using it?

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