On request the creation of emails accounts for testing.
Postfix, PostfixAdmin, Dovecot, MariaDB.
https, http2, TLS v1.3, SMTP, IMTP, POP3, SPF, DKIM, DMARC.
During classes at Universidad Mayor de San Simon (UMSS) The idea of have a private email server that could send and recieve messages was born.
A HP EliteDesk 800 G1 Desktop Mini Business PC Intel Quad-Core i5-4570T (2.90GHz) 8GB RAM 500GB HDD Windows 10 Pro 64-Bit WiFi with Ubuntu 18 was connected to internet.
Major test with Outlook and Gmail were done, and the Email Server was operational.
Support multiple domains and provide help with daily QA duties.
This small team made it possible.