Why do we need internal mail servers in principle?

Question

Mail server

Why, in principle, do small and medium-sized businesses need internal mail servers if there are reliable Google and office365? And why is it a hassle for big business? Is it worth learning the technology of local mail servers at all? Well, I’ll learn this business in virtual machines, but if in real life I don’t do this for years (because no one orders), then it will be forgotten and distributions will step forward

Answer 1

you do not need to learn anything, do not strain.
but for now we will have work)
But seriously - are they really so reliable? Are you sure that you want to give your correspondence to the side? Paranoia is different

Answer 2

1. Security. The same Google can (and should) give your data to special services if requested. If you have a server, there are nuances.
2. Flexibility. Many public services have unexpected restrictions, which, no, no, but interfere with life. Accountants are terrible people. They exchange correspondence with the tax on the scale of 2500+ letters per day - a trifling matter. But public mailers can easily have a restriction.
3. Price. Enterprise solutions are usually not cheap if you have 50+ users.
4. Locality. A sub-point of flexibility, in fact. That is, when the Internet falls, for example, users can use mail, read and send letters that the server will process as soon as it sees the Internet again.
5. Prestige. Price sub-item.[email protected] always looks cooler than [email protected] .

Answer 3

They are reliable today, but closed tomorrow. Or paid. Or limiting the volume of the box. Or something else.

Answer 4

Here's at least a glimpse. Each point can be deepened.

• Functionality (you will not run into the restriction "this is how we will not do it")
  
• Internal integrations (the same CRM, now still PBX)
  
• Unlimited possibilities for notification, storage, and, accordingly, integration with external systems
  
• Security of your data (including sanctions from regulators and law enforcement agencies)
  
• Reliability of the infrastructure (including access via the Internet for both the office itself and the whole country - the same blocking)
  
• Clear SLAs and no empty areas of responsibility (this is very important when considering risks)
  
• Independence from suppliers (sanctions, legal and contractual nuances)
  
• Legislative requirements - exchange of personal data
  

Answer 5

Why do small and medium-sized businesses need internal mail servers in principle?

There is absolutely no need.
A large one is needed for security, for example, and for spying on the correspondence of employees.

Answer 6

Well, the simple type is cool when you have your own mailer, everyone has their own little gmail))

Answer 7

Why do we need internal mail servers in principle

In order for internal correspondence not to go beyond the organization, well, control over the mail service.

if there are reliable Google and office365?

Why are they reliable?

Is it worth learning the technology of local mail servers at all?

Unknown.
For example, for a welder, this is completely unnecessary knowledge.

Answer 8

Given the balance and forecasting of hiring employees, you need to calculate the golden mean in favor of office 360 ​​or Gmail services in the purchase or use of open source solutions or paid platforms on personal servers.
In other words, you need to understand how expedient and financially appropriate the purchase of a server or the engineers who will set up the task for Open Source Solutions to perform the functions of using the mail service.
For example, Gmail use mailbox employees from 50 or buy a server and hire an engineer on a freelancer who will set up a mail server for 50 users.
Thank you for your question, I consider it rhetorical.

Answer 9

look here.
Microsoft Exchange vs. Google Gmail

Answer 10

Full control over the server and what is happening on it. And the ability to realize almost any Wishlist.
These points are enough to already make your server.