Set up a mail server on Debian 6

Employer
[no-member:pro]Artem[/no-member:pro]Artem
Project parameters
Type of cooperationOne-time project
SectionAdministration
Prepaymentwithout prepayment
Payment methodsElectronic money
Acceptance of requestsclosed
Project description
There is a server on Debian 6 minimal. It is planned to put a bundle of Apache Nginx PHP MySQL ISPManager Lite for server management. This bundle has already been installed, but the mail reached only mail.ru and occasionally on yandex.ru.
The server has now been cleared. There's a Debian 6 minimal. You need to set up a post on it and make a step-by-step (full!) ) instructions for setting it up so that after reinstalling the OS I can configure the mail myself. As a result, the mail must reach any mail server (mail.ru, yandex.ru, gmail.com, ukr.net, i.ua, etc.). ).
You set up the server, I check the sending of emails from the php script mail() and ssh. If all is well, give me the instructions and I will pay for your work.
You may need to fully configure the server and support it.
The server has now been cleared. There's a Debian 6 minimal. You need to set up a post on it and make a step-by-step (full!) ) instructions for setting it up so that after reinstalling the OS I can configure the mail myself. As a result, the mail must reach any mail server (mail.ru, yandex.ru, gmail.com, ukr.net, i.ua, etc.). ).
You set up the server, I check the sending of emails from the php script mail() and ssh. If all is well, give me the instructions and I will pay for your work.
You may need to fully configure the server and support it.