Create a server. It's time to install and configure

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the mail server: Settings — Software Configuration. After that, click the "Change" button of the "Mail Server" (SMTP/POP3/IMAP) item, select SMTP Server (MTA) — Exim. After that, you need to enable Dovecot (POP3/IMAP).
Services for creating corporate email
To organize corporate mail, 2 types of services are used:

email on domain;
mail server.
The work on creating the latter is a long, expensive, complex process. It will suit companies with a large target audience. The first type is most often used.

Yandex 360 for business
Former name – Yandex.Mail for domain. Offers a set of products for implementing business processes on the Internet: corporate mail, cloud spaces, teleconferences, mailings. What is interesting:

Functioning in accordance with articles of domestic legislation, in particular, storing user data on the territory of Russia.
Reliable, developed server infrastructure.
Ready-made solutions for mobile applications.
Possibility to organize a system for managing company employees and email settings.
Availability of a system of protection against spam mailings.
Technical support 24/7 in Russian.
Possibility to restore accidentally deleted emails.
Unfortunately, the free version of the service is no longer available.

Google Workspace
There is a wide range of cloud products from Google, including Documents, Table, thailand whatsapp number database a messenger with the ability to make calls, Hangouts, Calendar, etc.

Pros:

many functions for working with documentation;
less dependence on blocking;
the presence of an assistant with artificial intelligence Gemini, which writes texts and generates images;
good interaction with clouds;
ensuring teamwork with documents;
two-factor protection.
Today, some functions may not be available to residents of Russia and Belarus due to payment issues.

Mail.ru for business
A domestic service that allows you to accommodate about 5 thousand addresses on a domain.

The advantages are seen in:

good opportunities for personalizing settings;
orientation towards domestic clients;
ease of settings;
the presence of a function for generating mailings and platforms for conducting surveys;
the existing automatic response capability.