hi there

I would categorize  Exchange 2016 as "groupware" rather than SMTP server per say, because you sent lots of stuff out of Exchange.

so to compare Exchange with postfix, exim would not be a proper comparison. For Linux based groupware that i know is completely free is Kolab (https://www.kolab.org/). its fairly easy to setup. Not sure about Zimbra is its Still free as of now.

Kopano is available in a free and a paid version and does everything Exchange does and more (and better):

https://kopano.com/ (paid version) https://kopano.io/ (community version, testbed)

If you are to use  postfix, exim or sendmail you would need to setup a webmail for that and use something like SquirrelMail or Dovecot of which  that more a bit complex than just setting up Kolab.

So in Short if you ware looking for Exchange equivalent in linux try Kolab or Zimbra. don't look at postfix or exim.

On 07/18/2018 07:04 PM, Turritopsis Dohrnii Teo En Ming wrote:

...

Good evening from Singapore,

I am torn between deploying Microsoft Exchange 2016 and Linux-based SMTP servers like sendmail, postfix, qmail and exim.

Relative ease of installation and configuration is an important consideration factor.

Microsoft Exchange 2016, Domain Controller, and Active Directory are relatively easy to install and configure. Linux-based SMTP servers are extremely difficult to install and configure and of course, extremely time-consuming.

One of the features of Microsoft Exchange 2016 is that you can create additional folders on your Inbox in the server (server-side). Can Linux-based SMTP servers do that?

Does Exchange 2016 offer more user-friendly features or Linux-based SMTP servers?

Besides the above considerations, how about security? Traditionally, Linux is far more secure than Windows.

Judging by security, Linux-based SMTP servers ought to have a higher percentage of the market share?

Finally, I can only use Windows Server 2016 Standard Evaluation Copy FREE for a period of 3 years MAXIMUM. But I can use Linux servers and Mail Transport Agents (MTA) FREE perpetually.

Please advise.

Thank you very much.

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